282
B A Control Module -- I2 (SHU/I 43/ 53) Measuring resistances from the front of SHU/SHI 43/53/68 dishwashers Page A-1 5 2 5 3 I2 BU-A2 BN-I5-5 BN-I5-6 1 32 BK-I27-1 2 2 4 BN-I5-7 4 43 2 7 8 5 BU-I6-8 BU-I6-6 BU-I6-7 WH-a1-6 WH-I6-3 6 BU-I6-9 1 9 1 1 76 WH-a1-5 1 WHRD-e0-1 BU-A2 1 8 2 YE-e3 BN-I5-1 BN-I5-2 7 2 1 GYBK-a1-3 RD-I6-1 6 YE-e3 BK-I21-2 X1 measure water level switch (open circuit) measure NTC (~ 55 kW @ 72ºF ) measure rinse agent sensor (SHU/I 53/68) (~4 W) measure circulation motor (~10 W) measure top rack only actuator (SHU/I 68-- only) (~2150 W) measure dispenser actuator (~2150 W) HINT: Water valve and drain motor can be measured from front of dishwasher without accessing control module wire harnesses Resistances are: n Water valve ~ 1 kW n Drain motor ~ 165 W to Aqua Sensor to hot line to heater, Hi-Limit & flow switch to hot line measure drain motor (~165 W) to neutral line resets control module & starts test program 1st Edition/Revision 3 Tuesday, August 8, 2000 Tech Manual Troubleshooting Quick Chart Test Programs Repair Manual NOTE: Symbols (WH-I6-3) refer to wire colors and terminal/part symbols See circuit diagram # 36 for terminal/part symbols Wire colors: WH = white, BK = black, WHRD = white/ red, BU = blue, GYBK = gray/black, RD = red, YE = yellow , BN = brown

Bosch Dishwasher SHU Complete Troubleshooting Guide

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Page 1: Bosch Dishwasher SHU Complete Troubleshooting Guide

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Page 7: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page C-1 B A

SHU/SHI/SHV Dishwasher Quick Check Chart

1st Edition/Revision 0-A Tuesday, May 11, 1999

Use this chart to quickly identify problems from front of dishwasher without removing it.For a complete troubleshooting chart when symptoms are known, please refer to theSHU/SHI/SHV Dishwasher Troubleshooting Chart.

NOTE: Use a multimeter with temperature, voltage/resistance and current (ampere) probes.Do all resistance checks with power turned off. Identify each wire color and locationat the control module before looking at this chart. For a quick reference formeasuring resistances from the front of the dishwasher, please refer to the one pagediagram Measuring Resistances from the Front of any SHU or SHI Dishwasher.

NOTE: To access wire harnesses, open door and remove outer door panel (by removingthree T20 Torx screws on each side of inner door, starting from bottom -- the top sixscrews hold the fascia panel to the door). Once screws are out, close door, lift outerdoor panel up and pull bottom of panel out – door panel will drop out.

NOTE: Please see circuit diagram #36 for SHU/I 43/53/68 model dishwashers anddiagram #48 for SHV 43/48 model dishwashers in the Major Appliance TechnicalManual.

NOTE: An "F" fault code in the display for SHU/I 53/68 dishwashers shows there's a fillingproblem (not filling, overfilling, underfilling or water in the base). The fault code can'tbe reset manually – it will reset itself 15 minutes after the dishwasher has beenturned on (after testing how it fills).

To check Measure If yes If no

Water valve Resistance throughwater valve terminals(≈ 1000 Ω).

Valve may be OK –more testing may beneeded.

Turn off dishwasherand replace watervalve.

Drain motor Lift plastic terminalcover and measureresistance throughdrain motor terminals(≈ 16.5 Ω).

Drain motor may beOK – more testingmay be needed.

Turn off dishwasherand replace drainmotor.

HINT: Locking type terminalsare used – push a small (#1)blade screwdriver into eachterminal notch and slideterminal off at same time.

HINT: Start test program,start any wash cycle or resetdishwasher to run drain motor-- see if water drains.

HINT: The drain motor is nota bilge pump – it won'tremove water from thedishwasher base.

Page 8: Bosch Dishwasher SHU Complete Troubleshooting Guide

B A Page C-2

SHU/SHI/SHV Dishwasher Quick Check Chart

1st Edition/Revision 0-A Tuesday, May 11, 1999

To check Measure If yes If no

Heater / flowswitch /Hi-Limitthermostat(185oF)

Current through hotwire into dishwasher –should be 10.5-11 A(amps).

Heater/flow switch/Hi-Limit thermostat areOK.

Test each part, turn offdishwasher andreplace defective part.

HINT: The resistance ofheater is ≈ 11 Ω, Hi-Limitthermostat is ≈ .3 Ω & flowswitch is ≈ .4 Ω. To measureflow switch resistance,remove microswitch & closeits contacts.

HINT: The NTC and Hi-Limit(185oF thermostat) arechanged as a unit. Must pullout dishwasher and removeor block up tub to replace it.

HINT: Don't pull outdishwasher and remove tubfor initial checking – onlywhen you're certain one ofthese parts has failed.

HINT: Start test program(SHU/I models) and skip"draining" and "Aqua SensorCalibration" until water hasfinished filling. When heatercomes on, measure current.Skip "heating & circulating"once you've measuredcurrent to save time.

HINT: Must pull outdishwasher and remove ortilt/block up tub to replaceparts. Bring all three partsbefore disassemblingdishwasher and test eachpart separately.

HINT: The Hi-Limitthermostat (185oF) is a bi-metal self-resettingthermostat.

NTC(temperatureprobe)

At control module,measure resistancebetween two brownwires at left of rightharness (≈ 55 kΩ atroom temperature(72oF)).

NTC probably is OK. Turn off dishwasherand replace NTC.

HINT: Make sure water insump has cooled to roomtemperature beforemeasuring resistance.

HINT: The NTC and Hi-Limit(185oF thermostat) arechanged as a unit. Must pullout dishwasher and removeor block up tub to replace it.

Water levelswitch

After water fills, turn offdishwasher andmeasure (SHU/Imodels) between whitewire at left of 3rd

harness from left and2nd blue wire from left of4th harness from left (≈.4 Ω).

Water level switch isOK.

HINT: For SHV models,measure between white wireat right of 1st harness & whitewire at left of 4th harness.

Turn off dishwasherand replace waterlevel switch.

HINT: Must pull outdishwasher and remove leftside panel to access waterlevel switch.

Float switch Resistance betweenwhite wire to watervalve and white wireeither at right of on/offswitch harness (SHU/Imodels) or at left of 4th

harness (SHV models)(≈ 4Ω).

Float switch and watervalve probably are OK.

Test float switch andwater valve, turn offdishwasher andreplace whatever partwas defective.

Page 9: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page C-3 B A

SHU/SHI/SHV Dishwasher Quick Check Chart

1st Edition/Revision 0-A Tuesday, May 11, 1999

To check Measure If yes If no

Float switch(cont.).

HINT: Any debris (e.g. acable tie) in dishwasher basecan move under float and turnon float switch. Clean alldebris from dishwasher base.

HINT: Must pull outdishwasher and remove leftside panel to access floatswitch.

Aqua sensor(SHU 53-- &68—only)

Find three brown wiresat far right of controlmodule. Measureresistance betweenmiddle wire and left(preferred) or rightwire (≥ 1 MΩ).

Sensor may be OK. Turn off dishwasherand replace sensor.

HINT: The aquasensor does notaffect washabilityand should not bereplaced (unless aleak has occurredaround it).

HINT: Don't check thisunless customer has broughtup long wash times (and hasmeasured them). The sensorchecks water clarity and addsa wash/rinse cycle only whenthe rinse water is still dirty.

HINT: Can also measureresistance between innerterminal (light) and eitherouter terminal (sensor) ofsensor itself.

HINT: Due to nature ofsensor, resistance readingscan be inconsistent.

HINT: Must pull outdishwasher and remove leftside panel to access sensor(for measuring or replacing).Sensor can be pulled out ofsensor assembly at rear ofsump.

Circulationmotor

At control module,measure resistance(SHU/I models)between white/red wireon 1st harness from left& 2nd blue wire fromright on 4th harnessfrom left (≈ 10 Ω).

Circulation motor maybe OK – more testingmay be needed (ifdebris enteredimpeller).

Turn off dishwasherand replace circulationmotor.

HINT: For SHV models,measure between white/redwire at left of 2nd harness &white wire at middle of 4th

harness.

HINT: Debris can get in iffilter basket wasn't properlyscrewed in and locked. Don'tremove motor to cleanimpeller – remove filterbasket/screen and reachthrough right side of sumpinto impeller.

HINT: Must pull outdishwasher and remove ortilt/block up tub to remove orreplace motor – do so only ifcertain motor has failed orimpeller is jammed withdebris.

Detergentdispenseractuator

Resistance through"wax" motor terminals(≈ 2150 Ω).

Actuator motor may beOK – more testingmay be needed.

Turn off dishwasherand replace actuator"wax" motor.

Top rackonly actuator(SHU/I 68--& SHV 48--modelsonly).

At control module,measure resistance(SHU/I models)between white wires of3rd harness (from left) -- (≈ 2150 Ω).

Actuator motor may beOK – more testingmay be needed.

HINT: For SHV models,measure between white/redwire at left of 2nd harness &white wire at middle of 4th

harness.

Turn off dishwasherand replace actuator"wax" motor.

Page 10: Bosch Dishwasher SHU Complete Troubleshooting Guide

B A Page C-4

SHU/SHI/SHV Dishwasher Quick Check Chart

1st Edition/Revision 0-A Tuesday, May 11, 1999

To check Measure If yes If no

Controlmodule

Run test program(SHU/I models) andcheck if indicatorlights/displays comeon and all buttons click(and resist a bit whenpressed).

Module may be OK –more testing may beneeded.

Go to troubleshootingchart and checkwhether module oranother part is faulty.

Rinse aiddispenserlevel switch(SHU 53/68 &SHV 48—models only)

At control module,measure resistancebetween two yellowwires (2nd harnessfrom right) -- (≈ .4 Ω).

Level switch probablyis OK.

Check to see if rinseaid dispenser isempty. If not, turn offdishwasher andreplace level switch.

NOTE: The following parts can't be serviced from the front of the dishwasher (the dishwashermust be pulled out and the tank removed or tilted/blocked up to replace them):

• Heater• Circulation motor• Aqua sensor ("Sensotronic")• NTC (temperature probe)/Hi-Limit (185oF) thermostat

NOTE: You will need a T20 Torx screwdriver and may need #1/ #2 flat blade screwdriversand a pair of needlenose pliers. Many parts can be snapped out without using tools.

NOTE: On SHU/I 43/53/68 models, run test program to identify dishwasher problems (pleasesee page F-1). The test can run more than one hour (to get temperature up to150oF), but tests can be cancelled to greatly shorten testing time. The test programallows draining, filling, circulating and heating to be checked more quickly thanrunning a standard wash cycle.

To use test program for troubleshooting, measure voltages/currents as parts comeon. For example, run heating test and measure current coming into dishwasher – ifcurrent ≈ 11A, Hi-Limit, heater and flow switch are OK. If not, check each part to seewhich one failed. This test saves time since you can't get to these parts withoutremoving the tank and can't run resistance checks from front of dishwasher becauseflow switch stays open. Please see page B-1 on using test program to troubleshootheater, flow switch and Hi-Limit.

Page 11: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page C-5 B A

SHU/SHI/SHV Dishwasher Quick Check Chart

1st Edition/Revision 0-A Tuesday, May 11, 1999

NOTE: To cancel/drain dishwasher while it's cycling, press and hold the followingbuttons (until dishwasher starts to drain):

SHU/I 43-- & SHV 43/48 Press and hold "Regular Wash" & "PowerScrub Plus" buttons

SHU/I 53/68 Press and hold "Scrub Wash" &"Delicate/Economy" buttons until "CL"shows on display

WARNING!

ELECTRICAL SHOCK HAZARD (120 VAC)• TURN OFF ELECTRICAL POWER AT THE CIRCUIT BREAKER OR FUSE BOX BEFORE

DISASSEMBLING OR REPAIRING THE DISHWASHER.

• MAKE SURE THE DISHWASHER IS ELECTRICALLY GROUNDED.

• USE COPPER CONDUCTORS ONLY FOR ALL WIRING OR REWIRING. FAILURE TOFOLLOW THESE INSTRUCTIONS COULD RESULT IN SERIOUS INJURY OR DEATH.

Page 12: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page D-1 B A

SHU/SHI/SHV Dishwasher Troubleshooting Chart

1st Edition/Revision 0-B Wednesday, August 9, 2000

NOTE: For minor problems from improper usage or lack of maintenance, please refercustomer to the Self-Help chart in their Use and Care Manual.

Problem Possible Cause Suggested Action

Washabilityproblems(dishwasherwon't cleanproperly)

Inappropriate dishwasherdetergent used.

Blocked or clogged upper/lower spray arms.

Instruct customer to use a powdereddishwasher detergent (e.g. Cascadepowder).

Check spray arms – clean or replaceas needed.

Water doesn't circulateproperly due to debris incirculation motor impeller.

Twist and remove filter, then removedebris from right side of sump wherewater enters circulation pump impeller.If debris has jammed impeller, turn offand pull out dishwasher, remove tank,remove circulation motor and unscrewand clean out impeller.

HINT: If impeller is damaged, replace entireimpeller assembly or it won't seal adequately.

Filter not locked downsecurely, allowing debris toenter sump.

Twist and remove filter, then removedebris from sump. Instruct customer totwist and lock filter (cylinder) securelyinto sump.

CAUTION: Use caution whenremoving debris from sump to avoidbeing cut by sharp debris such asaluminum can tabs or broken glass.

HINT: Due to high temperature rinse (161oF)breaking down food debris and triple filteringsystem trapping food debris, filters shouldn'tnormally clog up. Problem often caused by filternot being securely locked down. Instructcustomer to twist and lock filter (cylinder)securely into dishwasher sump.

HINT: Water level willnot affect washability aswater fill is measured bypressure, not time –water level cannot beadjusted.

Drain hose behinddishwasher doesn't have anadequate loop.

Partially clogged air gap,allowing wastewater fromprior washes to circulate indishwasher.

Loop drain hose behind the dishwasher(with the top of the loop) at least 20"above the floor.

Unclog sink air gap.

NOTE: Cleaning sink air gaps is not coveredunder warranty.

Water doesn't drain properly See Water doesn't drain properly onpage D-3.

Soap doesn't enterdishwasher due to dispenseractuator (A2) failure.

Turn off dishwasher and test actuator –replace if faulty.

Page 13: Bosch Dishwasher SHU Complete Troubleshooting Guide

B A Page D-2

SHU/SHI/SHV Dishwasher Troubleshooting Chart

1st Edition/Revision 0-B Wednesday, August 9, 2000

Problem Possible Cause Suggested Action

Washabilityproblems(dishwasherwon't cleanproperly) (cont.)

HINT: Must pull out dishwasher andremove left side panel to access floatswitch.

HINT: One "wax" motor operates both thedetergent and rinse aid dispensers through amechanical linkage. The system always resetswhen door closes. Check linkage by moving itmanually. Check "wax" motor by running acontinuity check on its terminals.

Suds or foamremains indishwasher.

Too much detergent used.

Improper detergent used(other than powdereddishwasher detergent).

Dishwasher doesn't drainproperly.

Instruct customer to use less.

Instruct customer to use a powdereddishwasher detergent (e.g. Cascadepowder).

See Water doesn't drain properly onpage D-3.

Dishes won't dryproperly.

Rinse aid not used. Instruct customer on using rinse aid –dishes won't dry without it.

Dishwasher hasan odor.

Standing water in dishwashersump.

Unclog air gap. Make sure top of drainhose loop (behind dishwasher) is atleast 20" above floor (add a loop inhose if there isn't one).

HINT: Water level in sump shouldbe at or below drain motor cover.

Standing water in dishwasherbase.

Minerals in customer watersupply.

Food debris in dishwasherfilters.

Turn off dishwasher, drain watermanually from dishwasher base andcorrect source of water leakage.

Recommend customer to get watertested and use an appropriate watersoftener.

Clean dishwasher filters.

Dishwasherwon't run orindicator lightswon't come on.

Dishwasher not turned on. No power to dishwasher.

Door ajar or on/off switchfailed.

Door latch has broken.

Indicator light failed.

Turn on/off switch on. Check customer circuit breaker, fuse

box or power connections.

Turn off dishwasher and check door oron/off switch -- adjust or replace them.

Turn off dishwasher and replace doorlatch – instruct customer to not pull ondoor without pulling latch.

Run test program to see if light failed(for SHU/I 43/53/68 models only – seepage F-1). If so, turn off dishwasherand replace indicator light.

BSH BSH
BSH BSH
BSH BSH
BSH BSH
BSH BSH
BSH BSH
BSH BSH
Bill, change master to show correct page D-3 instead of wrong page D-4.
Page 14: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page D-3 B A

SHU/SHI/SHV Dishwasher Troubleshooting Chart

1st Edition/Revision 0-A Tuesday, May 11, 1999

Problem Possible Cause Suggested Action

Dishwasherwon't stop fillingor won't stopdraining.

Water in dishwasher basefrom leaky or loose hose.

Dishwasher isn't level,causing float switch (e6) tooperate.

Float switch or diaphragm(e6) failed.

Debris in dishwasher baseactivated float switch (e6).

Turn off dishwasher, drain watermanually from dishwasher base andreinstall or replace hose.

Level dishwasher using front and rearleveling legs (see customer dishwasherinstallation instructions).

Turn off dishwasher and replace floatswitch or diaphragm.

Turn off dishwasher and remove debrisfrom dishwasher base

Water doesn'tdrain properly.

Kink in drain hose. Dishwasher filter(s) or sump

clogged.

Straighten or replace drain hose. Clean dishwasher filters or sump.

Drain motor impeller clogged. Turn off dishwasher, remove drainmotor cover (in sump) and cleanimpeller. If necessary, remove drainmotor to clean impeller.

CAUTION: Use cautionwhen removing debrisfrom sump to avoid beingcut by sharp debris suchas aluminum can tabs orbroken glass.

Kitchen sink or sink air gapclogged.

Drain motor (m3) failed.

Timer (SHU 30/40 models) ormodule (all other models)failed.

Improper drain connectionheight (< 20" or 508mmabove floor).

Unclog sink or sink air gap.

NOTE: Cleaning sink air gaps or sinks are notcovered under warranty.

Turn off dishwasher and measureresistance at motor terminals (≈ 16.5Ω). Replace faulty motor.

Check voltage at and wiring to timer ormodule. Turn off dishwasher andreplace faulty timer or module (forSHU/I 43/53 models, install existingmodule jumper onto new module).

Install drain height and sink air gapaccording to local codes.

Water fills tooslowly.

Low customer water supplypressure.

Inadequate customer watersupply piping.

Scale in customer supplypiping or dishwasherpiping/parts from hard water.

Adjust customer water supply pressure(to 5-20 psi or 0.3-8.27 bars).

Install appropriate piping to dishwasher(minimum 3/8" copper tanking)according to local codes.

Clean or replace clogged piping/partsand have customer get water testedand use appropriate water softener.

Page 15: Bosch Dishwasher SHU Complete Troubleshooting Guide

B A Page D-4

SHU/SHI/SHV Dishwasher Troubleshooting Chart

1st Edition/Revision 0-A Tuesday, May 11, 1999

Problem Possible Cause Suggested Action

Water won't fill.

NOTE: An "F" fault codein the display for SHU/I53/68 dishwashersshows there's a fillingproblem (not filling, over-filling, underfilling or water inthe base). The fault codecan't be reset manually –it will reset itself 15minutes after thedishwasher has beenturned on (after testinghow it fills).

Customer water supplyturned off or disconnected.

Water valve (s2) failed.

Water level switch (f1) failed.

Timer (SHU 30/40 models) ormodule (all other models)failed.

Water in dishwasher baseoperated float switch (e6).

Reconnect and turn on customer watersupply.

Check resistance @ water valveterminals (≈ 1000 Ω). Turn offdishwasher and replace faulty valve.

Turn off dishwasher and replace faultylevel switch.

Check voltage at and wiring to timer ormodule. Turn off dishwasher andreplace faulty timer or module (forSHU/I 43/53 models, install existingmodule jumper onto new module).

Turn off dishwasher, drain watermanually from dishwasher base, findsource of leaking water and fix waterleak.

Detergent orrinse aid won'tdispenseproperly.

Dispenser actuator (A2)failed.

Detergent dispenser door isjammed.

Turn off dishwasher and replaceactuator.

Free jammed detergent dispenserdoor.

Refill rinse aidlight won't comeon (SHU/I 53/68 &SHV 48 models).

Rinse aid level switch (reedswitch e3) failed.

Turn off dishwasher and replace reedswitch.

Water doesn'tcirculate.

Circulation motor (m2) failed. Timer (SHU 30/40 models) or

module (all other models)failed.

Turn off dishwasher and replace motor. Check voltage at and wiring to timer or

module. Turn off dishwasher andreplace faulty timer or module (forSHU/I 43/53 models, install existingmodule jumper onto new module).

Water doesn’theat up properly.

Hi-Limit (f5) tripped and failedto reset.

NTC (temperature sensor)failed.

140oF (f3) or 161oF (f4)thermostat (SHU 30/40models) failed.

Run test program (SHU/I 43/53/68models) – measure current todishwasher. If current ≈ 11A, Hi-Limitis OK. If not (and for all other models),turn off dishwasher and measureresistance @ Hi-Limit terminals (≈ .3Ω). Replace faulty Hi-Limit.

Turn off dishwasher and checkresistance of NTC (≈ 55 kΩ @ 72oF).Replace faulty NTC.

Turn off dishwasher and replace faultythermostat.

Page 16: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page D-5 B A

SHU/SHI/SHV Dishwasher Troubleshooting Chart

1st Edition/Revision 0-A Tuesday, May 11, 1999

Problem Possible Cause Suggested Action

Water doesn’theat up properly(cont.).

Heater (r1) failed.

Water flow switch (e5) failed.

Timer (SHU 30/40 models) ormodule (all other models)failed.

Run test program (SHU/I 43/53/68models – see page B-1) – measurecurrent to dishwasher. If current ≈11A, heater is OK. If not (and for allother models), turn off dishwasher andmeasure heater resistance (≈ 11 Ω).Replace faulty heater.

Run test program (SHU/I 43/53/68models – see page B-1) – measurecurrent to dishwasher. If current ≈11A, flow switch is OK. If not, removeflow switch microswitch, close itscontacts & measure its resistance (≈ .4Ω). Replace faulty flow switch.

Check voltage at and wiring to timer ormodule. Turn off dishwasher andreplace faulty timer or module (forSHU/I 43/53 models, install existingmodule jumper onto new module).

Dishwasher cycleruns too long, yetdishwasherwashes, rinsesand shuts off OK.

Customer hot water supplyisn't hot enough (< 140oF/60 oC).

Adjust hot water supply according tolocal codes.

Water leaks fromfront ofdishwasher.

Blocked or clogged upper orlower spray arms.

Excessive foaming.

Damaged door gasket.

Check spray arms – clean or replaceas needed.

See Suds or foam remains indishwasher on page D-2.

Install new door gasket, providing anextra 1" – 1-1/4" on each side to coverbottom of tank (for a dam to preventleaking from splashing water at bottomcorners of tank).

HINT: Original gasket was longer to provide adam for tank corners. Do not trim gasket flushwith sides of tank or leaking may occur.

NOTE: Use a multimeter with temperature, voltage/resistance and current (ampere) probes.Do all resistance checks with power turned off. Identify each wire color and locationat the control module before looking at this chart. For a quick reference formeasuring resistances from the front of the dishwasher, please refer to the one pagediagram Measuring Resistances from the Front of any SHU or SHI Dishwasher.

BSH BSH
Bill -- save to archive, then update to include SHU 33, 99 & 303x.
Page 17: Bosch Dishwasher SHU Complete Troubleshooting Guide

B A Page D-6

SHU/SHI/SHV Dishwasher Troubleshooting Chart

1st Edition/Revision 0-A Tuesday, May 11, 1999

NOTE: You will need a T20 Torx screwdriver and may need #1/ #2 flat blade screwdriversand a pair of needlenose pliers. Many parts can be snapped out without using tools.

HINT: Symbols for parts (e.g. " f3" or "e6 " ) refer to schematic diagram #36 on page E-1and #48 on page E-2.

NOTE: The following parts can't be serviced from the front of the dishwasher (the dishwashermust be pulled out and the tank removed or tilted/blocked up to replace them):

• Heater• Circulation motor• Aqua sensor ("Sensotronic")• NTC (temperature probe)/Hi-Limit (185oF) thermostat

NOTE: On SHU/I 43/53/68 models, run test program to identify dishwasher problems (seetest program guide on page F-1). The test can run more than one hour (to gettemperature up to 150oF), but tests can be cancelled to greatly shorten testing time.The test program allows draining, filling, circulating and heating to be checked morequickly than running a standard wash cycle.

To use test program for troubleshooting, measure voltages/currents as parts comeon. For example, run heating test and measure current coming into dishwasher – ifcurrent ≈ 11A, Hi-Limit, heater and flow switch are OK. If not, check each part to seewhich one failed. This test saves time since you can't get to these parts withoutremoving the tank and can't run resistance checks from front of dishwasher becauseflow switch stays open. Please see page B-1 on using test program to troubleshootheater, flow switch and Hi-Limit.

NOTE: To cancel/drain dishwasher while it's cycling, press and hold the following buttons(until dishwasher starts to drain):

SHU/I 43-- & SHV 43/48 Depress and hold "Regular Wash" & "PowerScrub Plus" buttons

SHU/I 53/68 Depress and hold "Scrub Wash" &"Delicate/Economy" buttons until "CL"shows on display

NOTE: Jumpers aren't included with replacement modules. For SHU/I 43/53 models, takejumper off old module and put it on new module.

NOTE: An "F" fault code in the display for SHU/I 53/68 dishwashers shows there's a fillingproblem (not filling, overfilling, underfilling or water in the base). The fault code can'tbe reset manually – it will reset itself 15 minutes after the dishwasher has beenturned on (after testing how it fills).

BSH BSH
Bill -- Save old copy to archive, then update to include test programs for SHU 33, 99 & 303x.
BSH BSH
Bill - with tech info on pdf, we don't need separate circuit diagrams on pages E-1 & E-2. You'll need to revise table of contents accordingly.
BSH BSH
Bill -- save to archive, then update to add info for SHU 33 and 99.
Page 18: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page D-7 B A

SHU/SHI/SHV Dishwasher Troubleshooting Chart

1st Edition/Rev

NOTE: The customer hot water supply should meet or exceed the minimum requirementsbelow for the dishwasher to operate efficiently. Installations not meeting theserequirements should be reinstalled according to local codes.

• 20-60 psi (1.4 - 4.1 bars) water pressure

• 140oF (60oC) water temperature (recommended)

• minimum 3/8" (9.5 mm) flexible stainless steel or copper tanking inlet line

WARNING!

ELECTRICAL SHOCK HAZARD (120 VAC)• TURN OFF ELECTRICAL POWER AT THE CIRCUIT BREAKER OR FUSE BOX BEFORE

DISASSEMBLING OR REPAIRING THE DISHWASHER.

• MAKE SURE THE DISHWASHER IS ELECTRICALLY GROUNDED.

• USE COPPER CONDUCTORS ONLY FOR ALL WIRING OR REWIRING. FAILURE TOFOLLOW THESE INSTRUCTIONS COULD RESULT IN SERIOUS INJURY OR DEATH.

ision 0-A Tuesday, May 11, 1999

Page 19: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page F-1A B A

SHI/U 43/53/68 Dishwasher Test Programs

1st Edition/Revision 2 Tuesday, June 27, 2000

TEST* TIME NOTES

Draining 30 seconds

Aqua Sensor("Sensotronic") Calibration

65 seconds Not on SHI/U 43-- models

Filling Until Water Level Switch (f1) closes Can't skip this test

Heating & Circulating Until water temperature reaches 150ºF (65ºC) Dispenser actuator comes on

Draining 60 seconds

* To skip a test: SHI/U 43 models Press SCRUB WASH button.SHI/U 53/ 68 models Press REGULAR WASH button.

SHI/U 43—MODELSTo start test program, press and hold both POWER SCRUB PLUS and REGULAR WASH program buttons, then turn uniton by pressing ON/OFF button. When program buttons are released, lights above them will flash. To end test program,press ON/OFF button.

To check each program indicator light, press its button.

To start testing, press both POWER SCRUB PLUS and REGULAR WASH buttons a second time. When testing hasended and a fault was detected, the following indicator lights will be lit:

WASH = Heater faultRINSE/DRY = Water filling fault (over or under filling)CLEAN = NTC (temperature sensor) fault – note circulation motor stops shortly after it started during an

NTC fault

To check for heater, high limit or flow switch problems, start testing until heating starts. Using a meter with a current coil,measure current going into dishwasher. If current is ~ 11 A, then heater, high limit and flow switch are OK. If current staysat ~ 1.5-2 A, then heater, high limit or flow switch are faulty.

If water level switch (f1) has failed (opened), RINSE/DRY light will come on and unit will continually fill and drain wheretesting won't be completed. If flow switch (e5) has failed (opened), water won't heat (to 150ºF) and water won’t stopcirculating. If NTC probe (f2 / f4 ) has failed (opened), CLEAN light will come on immediately and testing will end shortlyafter water has started circulating.

If more than one fault occurs, more than one light will be lit.

SHU 43 models program buttons & indicator lights:

PowerScrubPlus

ScrubWash

RegularWash

Rinse& Hold

Wash Rinse/Dry

Clean

CancelDrain

See page F-1B for SHU4322/4326

models, F-1Cfor SHU 53models andpage F-1D

for SHI/U 68models

Page 20: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page F-1B B A

SHI/U 43/53/68 Dishwasher Test Programs

1st Edition/Revision 2 Tuesday, June 27, 2000

TEST* TIME NOTES

Draining 30 seconds

Aqua Sensor("Sensotronic") Calibration

65 seconds Not on SHI/U 43-- models

Filling Until Water Level Switch (f1) closes Can't skip this test

Heating & Circulating Until water temperature reaches 150ºF (65ºC) Dispenser actuator comes on

Draining 60 seconds

* To skip a test: SHI/U 43 models Press SCRUB WASH button.SHI/U 53/ 68 models Press REGULAR WASH button.

SHU 4322 & 4326 MODELS

To start test program, press and hold both REGULAR WASH and RINSE & HOLD program buttons, then turn unit on bypressing ON/OFF button. Initially, control module version # will be displayed (e.g./ “20” = version 0 without jumper). Whenwash program buttons are released, lights above them will flash. To end test program, press ON/OFF button.

To check each program indicator light, press its button. To check Cycle Countdown display, Refill Rinse Agent light andREGULAR WASH light, press REGULAR WASH button (press Delay Start button to test Cycle Countdown displayalone). Cycle Countdown display will show "88" when REGULAR WASH button is pressed and "8h" when Delay Startbutton is pressed.

To start testing, press both the REGULAR WASH and RINSE & HOLD buttons a second time. When testing has ended,Cycle Countdown display will show a fault using codes below. If more than one fault occurs, code numbers will be addedtogether, (e.g./ “6” = faults 2 + 4).

0 = No faults detected 2 = Heating fault 8 = NTC (temperature sensor) fault1 = Aqua Sensor ("Sensotronic") fault 4 = Filling fault F = Filling fault (display occurs during wash, not test)

To check for heater, high limit or flow switch problems, start testing until heating starts. Using a meter with a current coil,measure current going into dishwasher. If current is ~ 11 A, then heater, high limit and flow switch are OK. If current staysat ~ 1.5-2 A, then heater, high limit or flow switch are faulty.

If water level switch (f1) has failed (opened), display will show fault code "4" and unit will continually fill and drain wheretesting won't be completed. If flow switch (e5) has failed (opened), display will show "0", water won't heat (to 150ºF) andwater won’t stop circulating. If NTC probe (f2 / f4 ) has failed (opened), display will show fault code "8" immediately andtesting will end shortly after water has started circulating.

SHU 4322/4326 models program buttons & indicator lights:

Cycle Countdown PowerScrubPlus

RegularWash

Delicate/Econo

Rinse& Hold

RefillRinseAgent20

CancelDrain

See page F-1A for SHI/U

43 models, F-1C for SHU53 models

and page F-1D for SHI/U68 models

Page 21: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page F-1C B A

SHI/U 43/53/68 Dishwasher Test Programs

1st Edition/Revision 2 Tuesday, June 27, 2000

TEST* TIME NOTES

Draining 30 seconds

Aqua Sensor("Sensotronic") Calibration

65 seconds Not on SHI/U 43-- models

Filling Until Water Level Switch (f1) closes Can't skip this test

Heating & Circulating Until water temperature reaches 150ºF (65ºC) Dispenser actuator comes on

Draining 60 seconds

* To skip a test: SHI/U 43 models Press SCRUB WASH button.SHI/U 53/ 68 models Press REGULAR WASH button.

SHU 53 MODELS

To start test program, press and hold both SCRUB WASH and DELICATE/ECONO program buttons, then turn unit on bypressing ON/OFF button. Initially, control module version # will be displayed (e.g./ “21” = version 1 with jumper). Whenwash program buttons are released, lights above them will flash. To end test program, press ON/OFF button.

To check each program indicator light, press its button. To check Cycle Countdown display, Refill Rinse Agent light andREGULAR WASH light, press REGULAR WASH button (press Delay Start button to test Cycle Countdown displayalone). Cycle Countdown display will show "88" when REGULAR WASH button is pressed and "8h" when Delay Startbutton is pressed.

To start testing, press both the SCRUB WASH and DELICATE/ECONO buttons a second time. When testing has ended,Cycle Countdown display will show a fault using codes below. If more than one fault occurs, code numbers will be addedtogether, (e.g./ “6” = faults 2 + 4).

0 = No faults detected 2 = Heating fault 8 = NTC (temperature sensor) fault1 = Aqua Sensor ("Sensotronic") fault 4 = Filling fault F = Filling fault (display occurs during wash, not test)

To check for heater, high limit or flow switch problems, start testing until heating starts. Using a meter with a current coil,measure current going into dishwasher. If current is ~ 11 A, then heater, high limit and flow switch are OK. If current staysat ~ 1.5-2 A, then heater, high limit or flow switch are faulty.

If water level switch (f1) has failed (opened), display will show fault code "4" and unit will continually fill and drain wheretesting won't be completed. If flow switch (e5) has failed (opened), display will show "0", water won't heat (to 150ºF) andwater won’t stop circulating. If NTC probe (f2 / f4 ) has failed (opened), display will show fault code "8" immediately andtesting will end shortly after water has started circulating.

SHU 53 models program buttons & indicator lights:

Cycle Countdown PowerScrubPlus

ScrubWash

RegularWash

Delicate/Econo

Rinse& Hold

RefillRinseAgent21

DelayStart

Hours

CancelDrain

See page F-1Afor SHI/U 43

models, F-1Bfor SHU

4322/4326models and

page F-1D forSHI/U 68models

Page 22: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page F-1D B A

SHI/U 43/53/68 Dishwasher Test Programs

1st Edition/Revision 2 Tuesday, June 27, 2000

TEST* TIME NOTES

Draining 30 seconds

Aqua Sensor("Sensotronic") Calibration

65 seconds Not on SHI/U 43-- models

Filling Until Water Level Switch (f1) closes Can't skip this test

Heating & Circulating Until water temperature reaches 150ºF (65ºC) Dispenser actuator comes on

Draining 60 seconds

* To skip a test: SHI/U 43 models Press SCRUB WASH button.SHI/U 53/ 68 models Press REGULAR WASH button.

SHI/U 68-- MODELS

To start test program, press and hold both SCRUB WASH and DELICATE/ECONO program buttons, then turn unit on bypressing ON/OFF button. Initially, control module version # will be displayed (e.g./ “20” = version 0 without jumper). Whenwash program buttons are released, lights above them will flash. To end test program, press ON/OFF button.

To check each program indicator light, press its button. To check Cycle Countdown display, Refill Rinse Agent light andREGULAR WASH light, press REGULAR WASH button (press Delay Start button to test Cycle Countdown displayalone). Cycle Countdown display will show "88" when REGULAR WASH button is pressed and "8h" when Delay Startbutton is pressed.

To start testing, press both SCRUB WASH and DELICATE/ECONO buttons a second time. When testing has ended,Cycle Countdown display will show a fault using codes below. If more than one fault occurs, code numbers will be addedtogether, (e.g./ “6” = faults 2 + 4).

0 = No faults detected 2 = Heating fault 8 = NTC (temperature sensor) fault1 = Aqua Sensor ("Sensotronic") fault 4 = Filling fault F = Filling fault (display occurs during wash, not test)

To check for heater, high limit or flow switch problems, start testing until heating starts. Using a meter with a current coil,measure current going into dishwasher. If current is ~ 11 A, then heater, high limit and flow switch are OK. If current staysat ~ 1.5-2 A, then heater, high limit or flow switch are faulty.

If water level switch (f1) has failed (opened), display will show fault code "4" and unit will continually fill and drain wheretesting won't be completed. If flow switch (e5) has failed (opened), display will show "0", water won't heat (to 150ºF) andwater won’t stop circulating. If NTC probe (f2 / f4 ) has failed (opened), display will show fault code "8" immediately andtesting will end shortly after water has started circulating.

SHU 68 models program buttons & indicator lights:

Cycle Countdown PowerScrubPlus

ScrubWash

RegularWash

Delicate/Econo

QuickWash

Rinse& Hold

RefillRinseAgent20

DelayStart

Hours

TopRackOnly

CancelDrain

See page F-1A for SHI/U

43 models, F-1B for SHU4322/4326

models andpage F-1Cfor SHU 53

models

Page 23: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page F-2 B A

SHV 43/48 Dishwasher Test Program

1st Edition/Revision 0-A

TEST* TIME NOTES

Draining 30 seconds

Filling Until Water Level Switch (f1) closes Input current < 1 A

Heating & Circulating(water circulates before unit stops filling)

Until water temperature reaches150ºF (65ºC)

Input current ~ 11 A anddispenser actuator comes on

Draining 60 seconds

* To skip Heating & Circulating test: SHV 43/48 models Press SCRUB WASH button.

SHV 43/48 MODELS

To start test program, press and hold both POWER SCRUB PLUS and REGULAR WASH program buttons, then turn uniton by pressing ON/OFF button. When program buttons are released, lights above them will flash. To end test program,press ON/OFF button. NOTE: TO ENABLE LIGHTS TO COME ON, DOOR MUST BE OPENED.

To check program indicator lights (POWER SCRUB PLUS, SCRUB WASH, REGULAR WASH and RINSE & HOLD),press and hold each program button. When SCRUB WASH program button is pressed, CLEAN and REFILL RINSEAGENT lights also come on (for SHV 4803 models) or CLEAN light also comes on (for SHV 4303 models). NOTE: TOENABLE LIGHTS TO COME ON, DOOR MUST BE OPENED.

To start testing, press both POWER SCRUB PLUS and REGULAR WASH buttons a second time. When testing hasended and a fault was detected, the following indicator lights will be lit:

POWER SCRUB PLUS = Heater faultSCRUB WASH = Water filling fault (over or under filling)REGULAR WASH = NTC (temperature sensor) fault – note circulation motor stops shortly after it started

during an NTC fault

To check for heater, high limit or flow switch problems, start testing until heating starts. Using a meter with a current coil,measure current going into dishwasher. If current is ~ 11 A, then heater, high limit and flow switch are OK. If current staysat ~ 1.5-2 A, then heater, high limit or flow switch are faulty.

If water level switch (f1) has failed (opened), SCRUB WASH light will come on and unit will continually fill and drain wheretesting won't be completed. If flow switch (e5) has failed (opened), water won't heat (to 150ºF) and water won’t stopcirculating. If NTC probe (f2 / f4 ) has failed (opened), REGULAR WASH light will come on immediately and testing willend shortly after water has started circulating. NOTE: TO ENABLE LIGHTS TO COME ON, DOOR MUST BE OPENED.

If more than one fault occurs, more than one light will be lit.

SHV 4303 models program buttons & indicator lights:

SHV 4803 models program buttons & indicator lights:

PowerScrubPlus

ScrubWash

RegularWash

Rinse& Hold

PowerScrubPlus

ScrubWash

RegularWash

Rinse& Hold

TopRackOnly

Clean

CleanRA

Refillinsegent

Monday, April 24, 2000

Page 24: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page F-3A B A

SHU 99 Dishwasher Test Program

1st Edition/Revision 1 Monday, October 9, 2000

TEST* TIME NOTES

Draining 30 seconds

Filling Until Water Level Switch (f1) closes Input current < 1 A

Heating & Circulating(water circulates before unit stops filling)

Until water temperature reaches150ºF (65ºC)

Input current ~ 11 A anddispenser actuator comes on

Draining 60 seconds

*To skip Heating & Circulating test:

SHU 9902/9905/9906 (Millennium) models Press SCRUB WASH button.SHU 991x/2x (Integra) models Press SCRUB WASH button.

SHU 9902/9905/9906 (Millennium) MODELSTo start test program, press and hold both POWER SCRUB PLUS and REGULAR WASH program buttons, then turn uniton by pressing ON/OFF button. When program buttons are released, lights above them will flash. To end test program,press ON/OFF button.

To check program indicator lights (POWER SCRUB PLUS, SCRUB WASH, REGULAR WASH and RINSE & HOLD),press and hold each program button. When SCRUB WASH program button is pressed, CLEAN light also comes on.

To start testing, press both POWER SCRUB PLUS and REGULAR WASH buttons a second time. When testing hasended and a fault was detected, the following indicator lights will be lit:

POWER SCRUB PLUS = Heater faultSCRUB WASH = Water filling fault (over or under filling)REGULAR WASH = NTC (temperature sensor) fault – note circulation motor stops shortly after it started during an NTC fault

To check for heater, high limit or flow switch problems, start testing until heating starts. Using a meter with a current coil,measure current going into dishwasher. If current is ~ 11 A, then heater, high limit and flow switch are OK. If current staysat ~ 1.5-2 A, then heater, high limit or flow switch are faulty.

If water level switch (f1) has failed (opened), SCRUB WASH light will come on and unit will continually fill and drain wheretesting won't be completed. If flow switch (e5) has failed (opened), water won't heat (to 150ºF) and water won’t stopcirculating. If NTC probe (f2 / f4 ) has failed (opened), REGULAR WASH light will come on immediately and testing willend shortly after water has started circulating.

If more than one fault occurs, more than one light will be lit.

SHU 9902/9905/9906 (Millennium) models program buttons & indicator lights:

See page F-3B for SHU 991x/992x (Integra) Models

PowerScrubPlus

ScrubWash

RegularWash

Rinse& Hold

Clean

Page 25: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page F-3B B A

SHU 99 Dishwasher Test Program

1st Edition/Revision 1 Monday, October 9, 2000

TEST* TIME NOTES

Draining 30 seconds

Filling Until Water Level Switch (f1) closes Input current < 1 A

Heating & Circulating(water circulates before unit stops filling)

Until water temperature reaches150ºF (65ºC)

Input current ~ 11 A anddispenser actuator comes on

Draining 60 seconds

*To skip Heating & Circulating test:

SHU 9902/9905/9906 (Millennium) models Press SCRUB WASH button.SHU 991x/992x (Integra) models Press SCRUB WASH button.

SHU 991x/992x (Integra) MODELSTo start test program, press and hold both POWER SCRUB PLUS and REGULAR WASH program buttons, then turn uniton by pressing ON/OFF button. When program buttons are released, lights above them will flash. To end test program,press ON/OFF button.

To check program indicator lights (POWER SCRUB PLUS, SCRUB WASH, REGULAR WASH and RINSE & HOLD),press and hold each program button. When SCRUB WASH program button is pressed, CLEAN light also comes on andan audible tone (“beep”) also occurs.

To start testing, press both POWER SCRUB PLUS and REGULAR WASH buttons a second time. When testing hasended and a fault was detected, the following indicator lights will be lit:

POWER SCRUB PLUS = Heater faultSCRUB WASH = Water filling fault (over or under filling)REGULAR WASH = NTC (temperature sensor) fault – note circulation motor stops shortly after it started during an NTC fault

To check for heater, high limit or flow switch problems, start testing until heating starts. Using a meter with a current coil,measure current going into dishwasher. If current is ~ 11 A, then heater, high limit and flow switch are OK. If current staysat ~ 1.5-2 A, then heater, high limit or flow switch are faulty.

If water level switch (f1) has failed (opened), SCRUB WASH light will come on and unit will continually fill and drain wheretesting won't be completed. If flow switch (e5) has failed (opened), water won't heat (to 150ºF) and water won’t stopcirculating. If NTC probe (f2 / f4 ) has failed (opened), REGULAR WASH light will come on immediately and testing willend shortly after water has started circulating.

If more than one fault occurs, more than one light will be lit.

SHU 991x/992x (Integra) models propgram buttons & indicator lights:

See page F-3A for SHU 9902/9905/9906 (Millennium) Models

PowerScrubPlus

Clean

ScrubWash

RegularWash

Rinse& Hold

Page 26: Bosch Dishwasher SHU Complete Troubleshooting Guide

Page F-4 B A

SHU 33 Dishwasher Test Program

1st Edition/Revision 0-A Monday, April 24, 2000

TEST* TIME NOTES

Draining 30 seconds

Filling Until Water Level Switch (f1) closes Input current < 1 A

Heating & Circulating(water circulates before unit stops filling)

Until water temperature reaches150ºF (65ºC)

Input current ~ 11 A anddispenser actuator comes on

Draining 60 seconds

* To skip Heating & Circulating test: SHU 33 models Press REGULAR WASH button.

SHU 33 MODELSTo start test program, press and hold both POWER SCRUB PLUS and RINSE & HOLD program buttons, then turn unit onby pressing ON/OFF button. When program buttons are released, lights above them will flash. To end test program, pressON/OFF button.

To check program indicator lights (POWER SCRUB PLUS, REGULAR WASH and RINSE & HOLD), press and hold eachprogram button. When REGULAR WASH program button is pressed, CLEAN light also comes on.

To start testing, press both POWER SCRUB PLUS and RINSE & HOLD buttons a second time. When testing has endedand a fault was detected, the following indicator lights will be lit:

POWER SCRUB PLUS = Heater faultREGULAR WASH = Water filling fault (over or under filling)RINSE & HOLD = NTC (temperature sensor) fault – note circulation motor stops shortly after it started

during an NTC fault

To check for heater, high limit or flow switch problems, start testing until heating starts. Using a meter with a current coil,measure current going into dishwasher. If current is ~ 11 A, then heater, high limit and flow switch are OK. If current staysat ~ 1.5-2 A, then heater, high limit or flow switch are faulty.

If water level switch (f1) has failed (opened), REGULAR WASH light will come on and unit will continually fill and drainwhere testing won't be completed. If flow switch (e5) has failed (opened), water won't heat (to 150ºF) and water won’t stopcirculating. If NTC probe (f2 / f4 ) has failed (opened), RINSE & HOLD light will come on immediately and testing will endshortly after water has started circulating.

If more than one fault occurs, more than one light will be lit.

SHU 33 models program buttons & indicator lights:

Clean PowerScrubPlus

RegularWash

Rinse& Hold

CancelDrain

Page 27: Bosch Dishwasher SHU Complete Troubleshooting Guide

BSH Home Appliances5551 McFadden AvenueHuntington Beach, CA 92649

Major Appliances Technical ManualFor: BOSCH

Effective August 1, 2000 2nd Edition/Rev. 1

This BSH Major Appliances Technical Manual supersedes all BSH Major AppliancesTechnical Manuals previously published.

Page 28: Bosch Dishwasher SHU Complete Troubleshooting Guide

i

DISHWASHERSSHI 4302 UC/06 ....................................................... 36 37 – 40SHI 4302 UC/10 ....................................................... 36 37 – 40SHI 4306 UC/06 ....................................................... 36 37 – 40SHI 4306 UC/10 ....................................................... 36 37 – 40SHI 6802 UC/06 ....................................................... 36 39 – 40SHI 6802 UC/10 ....................................................... 36 39 – 40SHI 6805 UC/06 ....................................................... 36 39 – 40SHI 6805 UC/10 ....................................................... 36 39 – 40SHI 6806 UC/06 ....................................................... 36 39 – 40SHI 6806 UC/10 ....................................................... 36 39 – 40SHU 3002 UC/06 ..................................................... 33 34 35 –SHU 3006 UC/06 ..................................................... 33 34 35 –SHU 3012 UC/06 ..................................................... 33 34 35 –SHU 3016 UC/06 ..................................................... 33 34 35 –SHU 3032 UC/06 ..................................................... 62 63 64 –SHU 3032 UC/10 ..................................................... 62 63 64 –SHU 3036 UC/06 ..................................................... 62 63 64 –SHU 3036 UC/10 ..................................................... 62 63 64 –SHU 3302 UC/06 ..................................................... 60 61 – 67SHU 3302 UC/10 ..................................................... 60 61 – 67SHU 3305 UC/06 ..................................................... 60 61 – 67SHU 3305 UC/10 ..................................................... 60 61 – 67SHU 3306 UC/06 ..................................................... 60 61 – 67SHU 3306 UC/10 ..................................................... 60 61 – 67SHU 4002 UC/06 ..................................................... 41 42 43 –SHU 4002 UC/10 ..................................................... 41 42 43 –SHU 4006 UC/06 ..................................................... 41 42 43 –SHU 4006 UC/10 ..................................................... 41 42 43 –SHU 4016 UC/06 ..................................................... 41 42 43 –SHU 4016 UC/10 ..................................................... 41 42 43 –SHU 4022 UC/06 ..................................................... 41 42 43 –SHU 4022 UC/10 ..................................................... 41 42 43 –SHU 4026 UC/06 ..................................................... 41 42 43 –SHU 4026 UC/10 ..................................................... 41 42 43 –SHU 4036 UC/06 ..................................................... 41 42 43 –SHU 4036 UC/10 ..................................................... 41 42 43 –SHU 4302 UC/06 ..................................................... 36 37 – 40SHU 4302 UC/10 ..................................................... 36 37 – 40SHU 4306 UC/06 ..................................................... 36 37 – 40SHU 4306 UC/10 ..................................................... 36 37 – 40SHU 4312 UC/06 ..................................................... 36 37 – 40SHU 4312 UC/10 ..................................................... 36 37 – 40SHU 4316 UC/06 ..................................................... 36 37 – 40SHU 4316 UC/10 ..................................................... 36 37 – 40

TABLE OF CONTENTSMODEL CIRCUIT WIRING TIMING TEST

DIAGRAM DIAGRAM DIAGRAM PROGRAM

BSH BSH
Test programs 40 and 65-67 have been replaced by the test programs in the bookmarks. The links to test programs 40 and 65-67 will take you to these updated pages.
Page 29: Bosch Dishwasher SHU Complete Troubleshooting Guide

ii

SHU 5302 UC/06 ..................................................... 36 38 – 40SHU 5302 UC/10 ..................................................... 36 38 – 40SHU 5304 UC/06 ..................................................... 36 38 – 40SHU 5304 UC/10 ..................................................... 36 38 – 40SHU 5305 UC/06 ..................................................... 36 38 – 40SHU 5305 UC/10 ..................................................... 36 38 – 40SHU 5306 UC/06 ..................................................... 36 38 – 40SHU 5306 UC/10 ..................................................... 36 38 – 40SHU 5312 UC/06 ..................................................... 36 38 – 40SHU 5312 UC/10 ..................................................... 36 38 – 40SHU 5314 UC/06 ..................................................... 36 38 – 40SHU 5314 UC/10 ..................................................... 36 38 – 40SHU 5315 UC/06 ..................................................... 36 38 – 40SHU 5315 UC/10 ..................................................... 36 38 – 40SHU 5316 UC/06 ..................................................... 36 38 – 40SHU 5316 UC/10 ..................................................... 36 38 – 40SHU 6802 UC/06 ..................................................... 36 39 – 40SHU 6802 UC/10 ..................................................... 36 39 – 40SHU 6805 UC/06 ..................................................... 36 39 – 40SHU 6805 UC/10 ..................................................... 36 39 – 40SHU 6806 UC/06 ..................................................... 36 39 – 40SHU 6806 UC/10 ..................................................... 36 39 – 40SHU 9902 UC/06 ..................................................... 48 49 – 66SHU 9902 UC/10 ..................................................... 48 49 – 66SHU 9905 UC/06 ..................................................... 48 49 – 66SHU 9905 UC/10 ..................................................... 48 49 – 66SHU 9906 UC/06 ..................................................... 48 49 – 66SHU 9906 UC/10 ..................................................... 48 49 – 66SHU 9912 UC/06 ..................................................... 48 49 – 66SHU 9912 UC/10 ..................................................... 48 49 – 66SHU 9915 UC/06 ..................................................... 48 49 – 66SHU 9915 UC/10 ..................................................... 48 49 – 66SHU 9916 UC/06 ..................................................... 48 49 – 66SHU 9916 UC/10 ..................................................... 48 49 – 66SHV 4303 UC/06 ...................................................... 48 49 – 65SHV 4303 UC/10 ...................................................... 48 49 – 65SHV 4803 UC/06 ...................................................... 48 49 – 65SHV 4803 UC/07 ...................................................... 48 49 – 65SHV 4803 UC/10 ...................................................... 48 49 – 65SMI 7052 US/08 ....................................................... 10 12 15 –SMI 7052 US/09 ....................................................... 10 12 15 –SMI 7052 UC/09 ....................................................... 10 12 15 –SMI 7052 UC/14 ....................................................... 10 13 15 –SMI 7052 UC/14 FD 7402 and above ............... 16 14 15 –SMI 7056 US/08 ....................................................... 10 12 15 –SMI 7056 US/09 ....................................................... 10 12 15 –SMI 7056 UC/09 ....................................................... 10 12 15 –SMI 7056 UC/14 ....................................................... 10 13 15 –SMI 7056 UC/14 FD 7402 and above ............... 16 14 15 –

TABLE OF CONTENTSMODEL CIIRCUIT WIRING TIMING TEST

DIAGRAM DIAGRAM DIAGRAM PROGRAM

BSH BSH
Test programs 40 and 64-67 have been replaced by the test programs in the bookmarks. The links to test programs 40 and 64-67 will take you to these updated pages.
Page 30: Bosch Dishwasher SHU Complete Troubleshooting Guide

iii

TABLE OF CONTENTSMODEL CIRCUIT WIRING TIMING TEST

DIAGRAM DIAGRAM DIAGRAM PROGRAM

SMU 2042 UC/09 ..................................................... 01 02 03 –SMU 2042 UC/13 ..................................................... 01 02 03 –SMU 2042 UC/14 ..................................................... 01 02 03 –SMU 2046 UC/09 ..................................................... 01 02 03 –SMU 2046 UC/13 ..................................................... 01 02 03 –SMU 2046 UC/14 ..................................................... 01 02 03 –SMU 3032 UC/14 ..................................................... 01 02 03 –SMU 3036 UC/14 ..................................................... 01 02 03 –SMU 4052 US/01 ..................................................... 04 06 08 –SMU 4052 US/08 ..................................................... 05 07 08 –SMU 4052 US/09 ..................................................... 04 06 08 –SMU 4052 US/09 FD 7301 and above ............. 05 07 08 –SMU 4052 UC/09 ..................................................... 05 07 08 –SMU 4052 UC/14 ..................................................... 05 07 08 –SMU 4056 US/01 ..................................................... 04 06 08 –SMU 4056 US/09 ..................................................... 04 06 08 –SMU 4056 US/09 FD 7301 and above ............. 05 07 08 –SMU 4056 UC/09 ..................................................... 05 07 08 –SMU 4056 UC/14 ..................................................... 05 07 08 –SMU 4092 UC/14 ..................................................... 17 18 19 –SMU 4096 UC/14 ..................................................... 17 18 19 –SMU 7052 US/02 ..................................................... 09 11 15 –SMU 7052 US/09 ..................................................... 09 11 15 –SMU 7052 UC/09 ..................................................... 09 11 15 –SMU 7052 UC/09 FD 7211 and above ............. 10 12 15 –SMU 7052 UC/14 ..................................................... 10 13 15 –SMU 7052 UC/14 FD 7407 and above ............. 16 14 15 –SMU 7056 US/02 ..................................................... 09 11 15 –SMU 7056 US/09 ..................................................... 09 11 15 –SMU 7056 UC/09 ..................................................... 09 11 15 –SMU 7056 UC/09 FD 7211 and above ............. 10 12 15 –SMU 7056 UC/14 ..................................................... 10 13 15 –SMU 7056 UC/14 FD 7407 and above ............. 16 14 15 –GAS COOKTOPSNHT 712 EUC ............................................................ 32 — – –NHT 715 EUC ............................................................ 32 — – –NHT 716 EUC ............................................................ 32 — – –NHT 722 EUC ............................................................ 32 — – –NHT 725 EUC ............................................................ 32 — – –NHT 726 EUC ............................................................ 32 — – –NHT 912 EUC ............................................................ 32 — – –NHT 915 EUC ............................................................ 32 — – –NHT 916 EUC ............................................................ 32 — – –NHT 922 EUC ............................................................ 32 — – –NHT 925 EUC ............................................................ 32 — – –NHT 926 EUC ............................................................ 32 — – –

Page 31: Bosch Dishwasher SHU Complete Troubleshooting Guide

iv

TABLE OF CONTENTSMODEL CIIRCUIT WIRING TIMING TEST

DIAGRAM DIAGRAM DIAGRAM PROGRAM

ELECTRIC COOKTOPSNKT 712 EUC............................................................. 21 20 – –NKT 715 EUC............................................................. 21 20 – –NKT 716 EUC............................................................. 21 20 – –NKT 722 EUC ............................................................. 55 54 – –NKT 725 EUC ............................................................. 55 54 – –NKT 726 EUC ............................................................. 55 54 – –NKT 912 EUC............................................................. 23 22 – –NKT 915 EUC............................................................. 23 22 – –NKT 916 EUC............................................................. 23 22 – –NKT 922 EUC............................................................. 57 56 – –NKT 925 EUC............................................................. 57 56 – –NKT 926 EUC............................................................. 57 56 – –OVENSHBL 532 AUC ............................................................ 24 25 – –HBL 535 AUC ............................................................ 24 25 – –HBL 536 AUC ............................................................ 24 25 – –HBL 542 AUC ............................................................ 26 27 – –HBL 545 AUC ............................................................ 26 27 – –HBL 546 AUC ............................................................ 26 27 – –HBL 552 AUC ............................................................ 28 29A/B – –HBL 555 AUC ............................................................ 28 29A/B – –HBL 556 AUC ............................................................ 28 29A/B – –HBL 562 AUC ............................................................ 30 31A/B – –HBL 565 AUC ............................................................ 30 31A/B – –HBL 566 AUC ............................................................ 30 31A/B – –HBL 632 AUC ............................................................ 50 — – –HBL 635 AUC ............................................................ 50 — – –HBL 636 AUC ............................................................ 50 — – –HBL/HBN 642 AUC ................................................ 51 — – –HBL/HBN 645 AUC ................................................ 51 — – –HBL/HBN 646 AUC ................................................ 51 — – –HBL/HBN 652 AUC ................................................ 52 — – –HBL/HBN 655 AUC ................................................ 52 — – –HBL/HBN 656 AUC ................................................ 52 — – –HBL/HBN 662 AUC ................................................ 53 — – –HBL/HBN 665 AUC ................................................ 53 — – –HBL/HBN 666 AUC ................................................ 53 — – –WASHERWFK 2401 UC/01 ..................................................... 44 45 – –DRYERSWTA 3500 UC/01 ..................................................... 46 47 – –WTL 5400 UC/01 ..................................................... 46 47 – –DOWNDRAFTSDHD 805 AUC ............................................................ — 59 – –DHD 865 AUC ............................................................ — 58 – –DHD 905 AUC ............................................................ — 59 – –DHD 965 AUC ............................................................ — 58 – –DHG 565 AUC ............................................................ — — – –

Page 32: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #1

L1

a1e1

b2 u1

u2

u3

u8u4

u64a

4

3a3

b

b

b

b

a

aa

ba

3 4

h1

m3

m1

m2b1

f4161˚

F

s2

f6

185˚

F

185˚

F

r1 Hz f5

1 2

N

12

34

56

78

910

11

Sym

bol K

ey

SM

U 2

0/3

0

curr

ent p

ath

a1O

N/O

FF S

WIT

CH

2e1

DO

OR

SW

ITC

H4

f4TH

ER

MO

STA

T 16

1˚F

8f5

HIG

H L

IMIT

185

˚F

11f6

HIG

H L

IMIT

185

˚F

11m

1TI

ME

R M

OTO

R

9u–

TIM

ER

CO

NTA

CTS

Sym

bol K

ey

curr

ent p

ath

m2

CIR

CU

LATI

ON

MO

TOR

10m

3D

RA

IN M

OTO

R5

r1H

EAT

ING

ELE

ME

NT

11s2

WAT

ER

SO

LEN

OID

7h1

ON

/OFF

LA

MP

3

Sel

ecto

r Sw

itch

Con

tact

s

RIN

SE

& H

OLD

RE

GU

LAR

PO

TS &

PA

NS

b1 b1 +

b2

Page 33: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #2c/u 1 737 203 495

1 739 910 909

WH

–1L–

N

BK–

1L–L

1

WH

RD

–e1

VT–

u2b

BU

RD

–e1

WH

–u8a

GN

–u4a

WH

VT–

u–m

1W

HV

T–f5

–3

3a3

4a4

b2 4

b2 3

b1 2

b1 1

On

– O

ff /

Sel

ecto

r Sw

itche

s –

a1 &

b

a1b

H1

BK–

m3

BK–

m2–

2B

N–m

2–3

Cap

acito

r – k

1G

YR

D–u

1bW

HG

N–f

5–3

BK–

k1

BN

–s2

GN

YE

–1L–

PE

3

Dra

in M

otor

– m

3B

N–m

3

BU

WH

–u3a

Wat

er S

olen

oid

– s2

Term

inal

Blo

ck –

1L

BK–

a1–4

a

WH

–a1–

3a

GN

YE

–PE

–1G

NY

E–m

3G

NY

E–r

1G

NY

E–P

E–2

L1 N

PE

3

BU

RD

–f6–

3G

NY

E–1

L–P

E3

GN

YE

–m2

RD

–f5–

1

Hea

ing

Ele

men

t – r1

BU

RD

–b2–

3B

UR

D–u

6

Doo

r Sw

itch

– e1 W

HR

D–a

1–4

Ther

mos

tats

– f4 W

H–f

6–2

YE

–u3b

161˚

F

Hig

h Li

mit

– f5

RD

–r1

WH

–u8a

WH

–f6–

2

WH

VT–

a1–3

WH

GN

–m3

185˚

F1

23

Hig

h Li

mit

– f6

GY

BK–

u6a

WH

–f5–

2W

H–f

4

BU

RD

–r1

185˚

F1

23

WH

GN

–u4b

BK–

k1

BN

–k1

GN

YE

–r1

Circ

ulat

ion

Mot

or –

m2

1

23

GN

–b1–

1

WH

–b1–

2W

H–f

5–2

GY

BK–

f6–1

GY

BK–

u6b

VT–

b2–4

WH

GN

–m2–

1G

YB

K–u6

a

BU

RD

–e1

BU

WH

–s2

WH

VT–

a1–3

YE

–f4

GY

RD

–m3

m1

Tim

er –

u

1b1a12a2

4b4a4

6b6a6

8b8a8

3b3a3

5b5a5

7b7a7

2b

Gro

und

– P

E

GN

YE

–1L–

PE

32

GN

YE

–1L–

PE

31

1M

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

SM

U 2

0/3

0

Page 34: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #3c/u 1 737 203 495

1 739 910 844

PR

E–W

AS

HP

RE

–RIN

SE

DR

YIN

GW

AS

H W

/ H

EAT

RIN

SE

W/

HE

AT

T I M E R C O N T A C T S P R O G R A M

TIM

E IN

SE

CO

ND

STI

ME

R P

OS

ITIO

N

OP

ER

ATIO

N

WA

SH

/RIN

SE

161˚

F /1

61˚F

161˚

F /1

61˚F

1 2 3 4 5 6 7 8

WA

SH

STA

LL

Dra

inin

g

Blo

ck E

cono

my

Filli

ng16

1˚F

Ther

mos

tat

Tim

er S

top

Circ

ulat

ion

Hea

ting

Dry

ing

Tim

er M

otor

Rin

se &

Hol

d

Reg

ular

Pot

s &

Pan

s

a b a b a b a b a b a b a b a b

12

34

56

78

910

1112

1314

1516

1718

1920

2122

2324

2526

2728

2930

3132

3334

3536

3738

3940

4142

4344

4546

4748

4950

5152

5354

5556

5758

5960

55

55

55

606060606060

6060606060606060

606060606060606060606060

60

6060606060606060606060606060605OFFOFF

f455

555

3030

60f4

55

550

P

PStop

F+U

F+UF+UF+UH+U+RH+UH+UUUUUUUUU

UUU

UUUP

PF+U

F+U

P+UF+U

F+UH+UH+UU+KUUUUPHTTTTTTTTTTHP

P

UUUU

RIN

SE

STA

LL

161˚

161˚

161˚

161˚

OP

ER

ATIO

N K

EY

DR

AIN

ING

P=

FILL

ING

F=

CIR

CU

LATI

ON

U=

DE

TER

GE

NT

DIS

PE

NS

ING

R=

RIN

SE

–AID

DIS

PE

NS

ING

K=

DR

YIN

GT

=H

EAT

ING

H=

SM

U 2

0/3

0

Page 35: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #4c/u 1 737 203 495

1 739 910 843

b1

a1e1

b2 u1

f3 b3

u2u4

u3

u8u6

4a4

3a3

b

b

b

b

aa

aa

ba

4 2

h1

m3

m1

m2

f4161˚

F

s2

f6185˚

F

185˚

F

r1 f5

1 5

6 5

12

34

56

78

910

11

e6

125˚

F

L1

N Sym

bol K

ey

curr

ent p

ath

a1O

N/O

FF S

WIT

CH

2e1

DO

OR

SW

ITC

H4

f3TH

ER

MO

STA

T 12

5˚F

6e6

FLO

AT S

WIT

CH

7

f4TH

ER

MO

STA

T 16

1˚F

8f5

HIG

H L

IMIT

185

˚F11

f6H

IGH

LIM

IT 1

85˚F

11

Sym

bol K

ey

curr

ent p

ath

m1

TIM

ER

MO

TOR

6m

2C

IRC

ULA

TIO

N M

OTO

R10

m3

DR

AIN

MO

TOR

5r1

HE

ATIN

G E

LEM

EN

T11

s2W

ATE

R S

OLE

NO

ID7

h1O

N/O

FF L

AM

P3

u–TI

ME

R C

ON

TAC

TS–

Sel

ecto

r Sw

itch

Con

tact

s

RIN

SE

& H

OLD

RE

GU

LAR

b1E

CO

NO

MY

b1 +

b3

PO

TS &

PA

NS

b1 +

b2

SM

U 4

052/

405

6U

S/0

1 &

US

/09

up to

FD

721

2

Page 36: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #5c/u 1 737 203 495

1 739 910 865

b4

b1

L1

a1e1

b2 u1

u2

u3 e6

u8u4

u64a

4

3a3

b

b

b

b

aa

aa

b 2a 2

a

4 2

h1

f3

125˚

F

m3

m1

m2

b3

f4161˚

F

s2

f6185˚

F

185˚

F

r1 Hz f5

1 5

6 5

N

12

34

56

78

910

11

Sym

bol K

ey

curr

ent p

ath

a1O

N/O

FF S

WIT

CH

2e1

DO

OR

SW

ITC

H4

f3TH

ER

MO

STA

T 12

5˚F

6e6

FLO

AT S

WIT

CH

7

f4TH

ER

MO

STA

T 16

1˚F

8

f5H

IGH

LIM

IT 1

85˚F

11

f6H

IGH

LIM

IT 1

85˚F

11

Sym

bol K

ey

curr

ent p

ath

m1

TIM

ER

MO

TOR

6m

2C

IRC

ULA

TIO

N M

OTO

R10

m3

DR

AIN

MO

TOR

5r1

HE

ATIN

G E

LEM

EN

T11

s2W

ATE

R S

OLE

NO

ID7

h1O

N/O

FF L

AM

P3

u–TI

ME

R C

ON

TAC

TS–

Sel

ecto

r Sw

itch

Con

tact

s

RIN

SE

& H

OLD

RE

GU

LAR

b1 +

b4

EC

ON

OM

Yb1

+ b

3

PO

TS &

PA

NS

b1 +

b2

+ b

4

SM

U 4

052

US

/08

& S

MU

405

2/4

056

US

/09

abov

e FD

73

01,

UC

/09

& U

C/1

4

Page 37: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #6c/u 1 737 203 495

1 739 910 814

BK–

m3

BK–

m2–

2B

N–m

2–3

Cap

acito

r – k

1

GY

RD

–u1b

WH

GN

–f5

BK–

k1

BN

–s2

GN

YE

–1L–

PE

3

Dra

in M

otor

– m

3

Term

inal

Blo

ck –

1L

BK–

a1–4

a

WH

–a1–

3a

GN

YE

–PE

–1G

NY

E–m

3G

NY

E–r

1G

NY

E–P

E–2

L1 N

PE

3

GY

BK–

f6G

NY

E–1

L–P

E3

GN

YE

–m2

RD

–f5

Hea

ting

Ele

men

t – r1B

UR

D–b

2–4

BU

RD

–u6

Doo

r Sw

itch

– e1 W

HR

D–a

1–4

WH

GN

–u4b

BK–

k1

BN

–k1

GN

YE

–r1

Circ

ulat

ion

Mot

or –

m2

1

23

BN

–m3

BU

–e6–

2

Wat

er S

olen

oid

– s2

GN

–b1–

1

WH

–b3–

5W

H–f

4G

YB

K–f6

GY

BK–

u6b

VT–

b2–2

WH

GN

–m2–

1G

YB

K–u6

a

BU

RD

–e1

BU

WH

–e6–

1

WH

VT–

a1–3

YE

–f4

GY

RD

–m3

m1

Tim

er –

u

1b1a12a2

4b4a4

6b6a6

8b8a8

3b3a3

5b5a5

7b7a7

2b

BN

–f3

WH

–1L–

N

BK–

1L–L

1

WH

RD

–e1

WH

–u8a

BU

RD

–e1

VT–

u2b

GN

–u4a

WH

VT–

u–m

1W

HV

T–f5

3a3

4a4

b1 +

b3

5b3

6

b2 4

b4 3

b2 2

b1 1

On

– O

ff /

Sel

ecto

r Sw

itche

s –

a1 &

b

a1b

H1

RD

–f3

Ther

mos

tats

—f3

& f4

WH

–u8a

YE

–u3b

161˚

F

RD

–b3–

6

BN

–u1a

125˚

F

f3f4

Hig

h Li

mits

– f5

& f6

RD

–r1

WH

VT–

a1–3

WH

GN

–m3

185˚

F

185˚

Ff5 f6

GY

BK–

r1G

YB

K–u6

a

Floa

t Sw

itch

– e6

14 2

BU

WH

–u3a

BU

–s2

Gro

und

– P

E

GN

YE

–1L–

PE

32

GN

YE

–1L–

PE

31

1M

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

SM

U 4

052/

405

6U

S/0

1 &

US

/09

up to

FD

721

2

Page 38: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #7c/u 1 737 203 495

1 739 910 866

BK–

m3

BK–

m2–

2B

N–m

2–3

Cap

acito

r – k

1

GY

RD

–u1b

WH

GN

–f5–

3B

K–k1

BN

–s2

GN

YE

–1L–

PE

3

Dra

in M

otor

– m

3

Term

inal

Blo

ck –

1L

BK–

a1–4

a

WH

–a1–

3a

GN

YE

–PE

–1G

NY

E–m

3G

NY

E–r

1G

NY

E–P

E–2

L1 N

PE

3

BU

RD

–f6–

3G

NY

E–1

L–P

E3

GN

YE

–m2

RD

–f5–

1

Hea

ting

Ele

men

t – r1

BU

RD

–b2–

4B

UR

D–u

6

Doo

r Sw

itch

– e1 W

HR

D–a

1–4

WH

GN

–u4b

BK–

k1

BN

–k1

GN

YE

–r1

Circ

ulat

ion

Mot

or –

m2

1

23

BN

–m3

BU

–e6–

2

Wat

er S

olen

oid

– s2

GN

–b1–

1

WH

–b3–

5W

H–f

5–2

GY

BK–

f6–1

GY

BK–

b4–2

VT–

b2–2

WH

GN

–m2–

1R

D–b

4–2a

BU

RD

–e1

BU

WH

–e6–

1

WH

VT–

a1–3

YE

–f4

GY

RD

–m3

m1

Tim

er –

u

1b1a12a2

4b4a4

6b6a6

8b8a8

3b3a3

5b5a5

7b7a7

2b

BN

–f3

Ther

mos

tats

– f3

& f4

WH

–f6–

2

YE

–u3b

161˚

F

RD

–b3–

6

BN

–u1a

125˚

F

f3f4

Floa

t Sw

itch

– e6

14 2

BU

WH

–u3a

BU

–s2

WH

–1L–

N

BK–

1L–L

1

WH

RD

–e1

WH

–u8a

BU

RD

–e1

VT–

u2b

GN

–u4a

WH

VT–

u–m

1W

HV

T–f5

–3

3a2a

23

4a4

b1 +

b3

5b3

6

b2 4

b4 3

b2 2

b1 1

On

– O

ff /

Sel

ecto

r Sw

itche

s –

a1 &

b

a1b

H1

RD

–f3

RD

–u6b

GY

BK–

u6a

b4

Hig

h Li

mit

– f5

RD

–r1

WH

–u8a

WH

–f6–

2

WH

VT–

a1–3

WH

GN

–m3

185˚

F1

23

Hig

h Li

mit

– f6

GY

BK–

u6a

WH

–f5–

2W

H–f

4

BU

RD

–r1

185˚

F1

23

Gro

und

– P

E

GN

YE

–1L–

PE

32

GN

YE

–1L–

PE

31

1M

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

SM

U 4

052

US

/08

& S

MU

405

2/4

056

US

/09

abov

e FD

73

01,

UC

/09

& U

C/1

4

Page 39: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #8c/u 1 737 203 495

1 739 910 844P

RE

–WA

SH

PR

E–R

INS

ED

RY

ING

WA

SH

W/

HE

ATR

INS

E W

/ H

EAT

T I M E R C O N T A C T S P R O G R A M

TIM

E IN

SE

CO

ND

STI

ME

R P

OS

ITIO

N

OP

ER

ATIO

N

WA

SH

/RIN

SE

161˚

F /1

61˚F

125˚

F /1

61˚F

161˚

F /1

61˚F

1 2 3 4 5 6 7 8

WA

SH

STA

LL

125˚

F T

herm

osta

tD

rain

ing

Blo

ck E

cono

my

Filli

ng16

1˚F

The

rmos

tat

Tim

er S

top

Circ

ulat

ion

Hea

ting

Dry

ing

Tim

er M

otor

Rin

se &

Hol

d

Reg

ular

Eco

nom

y

Pot

s &

Pan

s

a b a b a b a b a b a b a b a b

12

34

56

78

910

1112

1314

1516

1718

1920

2122

2324

2526

2728

2930

3132

3334

3536

3738

3940

4142

4344

4546

4748

4950

5152

5354

5556

5758

5960

55

55

55

606060606060

6060606060606060

606060606060606060606060

60

6060606060606060606060606060605OFFOFF

f455

555

3030

60f3/f4

55

550

P

PStop

F+U

F+UF+UF+UH+U+RH+UH+UUUUUUUUU

UUU

UUUP

PF+U

F+U

P+UF+U

F+UH+UH+UU+KUUUUPHTTTTTTTTTTHP

P

UUUU

RIN

SE

STA

LL

161˚

161˚

161˚

161˚

125˚

16

1

1U

nhea

ted

Dry

Cyc

le•

SM

U 4

000

U

S/0

9 FD

7312

& A

BO

VE

U

C/0

9+

OP

ER

ATIO

N K

EY

DR

AIN

ING

P=

FILL

ING

F=

CIR

CU

LATI

ON

U=

DE

TER

GE

NT

DIS

PE

NS

ING

R=

RIN

SE

–AID

DIS

PE

NS

ING

K=

DR

YIN

GT

=H

EAT

ING

H=

SM

U 4

052/

405

6 al

l

Page 40: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #9c/u 1 737 203 490

1 739 910 821L1

a1e1

u3u2

u5u7

u1 105˚

F

uK4a

4

3a3

bb

aa

ba

bb

ba

aa

51

N1

23

45

67

89

1011

12

12–6

1314

14

f218

5˚F

f6f3

f4

125˚

F 16

1F

h1e3

r1

185˚

F

f5

m2

h4e6 s2

m1

m3

h3uK

1716

15121

1

2

2

3 3

4

4

5b/

5U

–12/

b/7

b/8

b/6

b3b2

a1b1

b2b3

b4b5

b6

Sym

bol K

ey

a1O

N/O

FF S

WIT

CH

2e1

DO

OR

SW

ITC

H4

e6FL

OAT

SW

ITC

H8

e3R

EE

D S

WIT

CH

4

f3TH

ER

MO

STA

T 12

5˚F

9f2

THE

RM

OS

TAT

105˚

F

13

f4TH

ER

MO

STA

T 16

1˚F

10f5

HIG

H L

IMIT

185

˚F

5f6

HIG

H L

IMIT

185

˚F

5

Sym

bol K

ey

h1O

N/O

FF L

AM

P3

h3R

INS

E A

ID L

AM

P4

h4C

LEA

N L

AM

P7

m1

TIM

ER

MO

TOR

11m

2C

IRC

ULA

TIO

N M

OTO

R6

m3

DR

AIN

MO

TOR

12r1

HE

ATIN

G E

LEM

EN

T5

s2W

ATE

R S

OLE

NO

ID8

ukR

AP

ID A

DVA

NC

E S

OLE

NO

ID14

curr

ent p

ath

curr

ent p

ath

u–TI

ME

R C

ON

TAC

TS–

Sel

ecto

r Sw

itch

Con

tact

s

EC

ON

OM

Yb3

QU

ICK

WA

SH

b2R

INS

E &

HO

LDb1

LIG

HT

CH

INA

b4

PO

TS &

PA

NS

b6R

EG

ULA

Rb5

CA

NC

EL

DR

AIN

b1 &

b2

SM

U 7

052/

705

6 U

S/0

2,U

S 0

9 &

VC

/09

up to

FD

721

0

Page 41: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #10c/u 1 737 203 490

1 739 910 821L1

a1e1

u3u5

u2

2a

u7u1 10

5˚F

uK4a

4

3a3

bb

aa

ba

bb

ba

aa

51

N1

23

45

67

89

1011

12

12–6

1314

14

f218

5˚F

f6f3

f4

125˚

F16

1F

h1e3

r1

185˚

F

f5

m2

h4e6 s2

m1

m3

h3uK

1716

15121

1

2

2

3 3

4

4

5b/

512

/

b/7

8

b–6

b3b2

a1b1

b2b3

b4b5

b6

2b1

Sym

bol K

ey

a1O

N/O

FF S

WIT

CH

2e1

DO

OR

SW

ITC

H4

e6FL

OAT

SW

ITC

H8

e3R

EE

D S

WIT

CH

4

f3TH

ER

MO

STA

T 12

5˚ F

9f2

THE

RM

OS

TAT

105˚

F13

f4TH

ER

MO

STA

T 16

1˚ F

10f5

HIG

H L

IMIT

185

˚ F

5f6

HIG

H L

IMIT

185

˚ F5

Sym

bol K

ey

h1O

N/O

FF L

AM

P3

h3R

INS

E A

ID L

AM

P4

h4C

LEA

N L

AM

P7

m1

TIM

ER

MO

TOR

11m

2C

IRC

ULA

TIO

N M

OTO

R6

m3

DR

AIN

MO

TOR

12r1

HE

ATIN

G E

LEM

EN

T5

s2W

ATE

R S

OLE

NO

ID8

ukR

AP

ID A

DVA

NC

E S

OLE

NO

ID14

curr

ent p

ath

curr

ent p

ath

u–TI

ME

R C

ON

TAC

TS–

Sel

ecto

r Sw

itch

Con

tact

s

EC

ON

OM

Yb3

QU

ICK

WA

SH

b2R

INS

E &

HO

LDb1

LIG

HT

CH

INA

b4

PO

TS &

PA

NS

b6R

EG

ULA

Rb5

CA

NC

EL

DR

AIN

b1 &

b2

SM

I 705

2/70

56

US

/08,

US

/09,

UC

/09

& U

C/1

4an

d S

MU

705

2/70

56

UC

/09

abov

e FD

721

1 &

UC

/14

up to

FD

74

06

Page 42: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #11c/u 1 737 203 490

1 739 910 822

BK–

m3

BK–

m2–

2B

N–m

2–3

Cap

acito

r – k

1

GY

BK–

f6G

NY

E–1

L–P

E3

GN

YE

–m2

RD

–f5

Hea

ting

Ele

men

t – r1

WH

VT–

b6W

HV

T–u2

Doo

r Sw

itch

– e1

WH

RD

–a1–

4W

HR

D–e

3

WH

GN

–u3b

BK–

k1

BN

–k1

GN

YE

–r1

Circ

ulat

ion

Mot

or –

m2

1

23

BN

–m3

BU

–e6–

2

Wat

er S

olen

oid

– s2

Ther

mos

tats

– f2

, f3

& f4

WH

–u8a

WH

–f4

YE

–u7b

161˚

F

WH

–f3

BN

–u5a

125˚

F

f3

WH

–b8

WH

–b7

GY–

u1a

105˚

F

f2f4

Hig

h Li

mits

– f5

& f6

RD

–r1

WH

VT–

a1–3

WH

GN

–m3

185˚

F

185˚

Ff5 f6

GY

BK–

r1G

YB

K–u2

a

Floa

t Sw

itch

– e6

14

2

BU

WH

–u5b

BU

–s2

WH

GN

–m2–

1

WH

–f3

GY

BK–

f6

GY

BK–

u2a

GY–

f2

GY

BK–

u2b

WH–b4WH–b3WH–b2WH–b1

BK–h3+h4W

GV

T–e1

BU

WH

–e6–

1

VT–

h4

YE

–f4

GY

RD

–m3

Tim

er –

u

1b1a12a2

4b4a4

6b6a6

8b8a8

3b3a3

5b5a5

7b7a7

2b

2 WH–b5

13

45

6U

–12

BN

–f3

Term

inal

Blo

ck –

1L

BK–

a1–4

a

WH

–a1–

3a

GN

YE

–PE

–1G

NY

E–m

3

GN

YE

–r1

GN

YE

–PE

–2

L1 N PE

3

WH

–f2

WH

–1L–

N

WH

GN

–f5

BK–

h3+

h4

WH

RD

–e1

BK–

1L–L

1

WH

–f2

WH

VT–

e1W

H–u

–12–

1W

H–u

–12–

2W

H–u

–12–

3W

H–u

–12–

4W

H–u

–12–

5

3a3

4a4

567 4 3 2 1

On

– O

ff /

Sel

ecto

r Sw

itche

s –

a1 &

b

a1

b/

H1

8

GY

RD

–u1b

WH

GN

–f5

BK–

k1B

N–s

2

GN

YE

–1L–

PE

3

Dra

in M

otor

– m

3

L1

BN

WH

–h3

Ree

d S

witc

h –

e3

WH

RD

–e1

N S

Cle

an/R

inse

Aid

Lam

ps –

h3/

h4

H3

Rin

se

H4

Cle

an

BN

WH

–e3

BK–

a1–3

BK–

u–L2

–6

VT–

u3a

Gro

und

– P

E

GN

YE

–1L–

PE

32

GN

YE

–1L–

PE

31

1M

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

SM

U 7

052/

705

6U

S/0

2, U

S/0

9&

UC

/09

up to

FD

721

0

Page 43: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #12c/u 1 737 203 490

1 739 910 860

BK–

m3

BK–

m2–

2B

N–m

2–3

Mot

or C

apac

itor –

k1

GY

BK–

f6G

NY

E–1

L–P

E3

GN

YE

–m2

RD

–f5

Hea

ting

Ele

men

t – r1

WH

VT–

b6W

HV

T–u2

Doo

r Sw

itch

– e1

WH

RD

–a1–

4W

HR

D–e

3

WH

GN

–u3b

BK–

k1

BN

–k1

GN

YE

–r1

Circ

ulat

ion

Mot

or –

m2

1

23

BN

–m3

BU

–e6–

2

Wat

er S

olen

oid

– s2

Ther

mos

tats

– f2

, f3

& f4

WH

–u8a

WH

–f4

YE

–u7b

161˚

F

WH

–f3

BN

–u5a

125˚

F

f3

WH

–b8

WH

–b7

GY–

u1a

105˚

F

f2f4

Hig

h Li

mits

– f5

& f6

RD

–r1

WH

VT–

a1–3

WH

GN

–m3

185˚

F

185˚

Ff5 f6

GY

BK–

r1G

YB

K–u2

a

Floa

t Sw

itch

– e6

14

2

BU

WH

–u5b

BU

–s2

WH

GN

–m2–

1

WH

–f3

GY

BK–

f6

GY

BK–

u2a

GY–

f2

GY

BK–

u2b

WH–b4WH–b3WH–b2WH–b1

BK–h3+h4W

GV

T–e1

BU

WH

–e6–

1

VT–

h4

YE

–f4

GY

RD

–m3

Tim

er –

u

1b1a12a2

4b4a4

6b6a6

8b8a8

3b3a3

5b5a5

7b7a7

2b

2 WH–b5

13

45

6U

–12/

BN

–f3

Term

inal

Blo

ck –

1L

BK–

a1–4

a

WH

–a1–

3a

GN

YE

–PE

–1G

NY

E–m

3

GN

YE

–r1

GN

YE

–PE

–2

L1 N PE

3

WH

–f2

WH

–1L–

N

WH

GN

–f5

BK–

h3+

h4

WH

RD

–e1

BK–

1L–L

1

WH

–f2

WH

VT–

e1W

H–u

–12–

1W

H–u

–12–

2W

H–u

–12–

3W

H–u

–12–

4W

H–u

–12–

5

3a3

4a4

567 4 3 2 1

On/

Off

Sel

ecto

r Sw

itche

s –

a1 &

b

a1

b/

H1

8

GY

RD

–u1b

WH

GN

–f5

BK–

k1B

N–s

2

GN

YE

–1L–

PE

3

Dra

in M

otor

– m

3

L1

BN

WH

–h3

Ree

d S

witc

h –

e3

WH

RD

–e1

N S

Cle

an/R

inse

Aid

Lam

ps –

h3/

h4

h3 Rin

se

h4 Cle

an

BN

WH

–e3

BK–

a1–3

BK–

u–L2

–6

VT–

u3a

Gro

und

– P

E

GN

YE

–1L–

PE

32

GN

YE

–1L–

PE

31

1M

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

SM

I 705

2/70

56

US

/08,

US

/09

& U

C /

09

and

SM

U 7

052/

705

6U

C/0

9 ab

ove

7211

Page 44: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #13c/u 1 737 203 490

1 739 910 933

BK–

m3

BK–

m2–

2B

N–m

2–3

Mot

or C

apac

itor –

k1

BU

RD

–f6–

3G

NY

E–1

L–P

E3

GN

YE

–m2

RD

–f5–

1

Hea

ting

Ele

men

t – r1

WH

VT–

b6W

HV

T–u2

Doo

r Sw

itch

– e1

WH

RD

–a1–

4W

HR

D–e

3

WH

GN

–u3b

BK–

k1

BN

–k1

GN

YE

–r1

Circ

ulat

ion

Mot

or –

m2

1

23

WH

–f5–

2W

H–f

6–2

YE

–u7b

161˚

F

WH

–f6–

2

BN

–u5a

125˚

F

f3

WH

–b8

WH

–b7

GY–

u1a

105˚

F

f2f4

Floa

t Sw

itch

– e6

14

2

BU

WH

–u5b

BU

–s2

WH

GN

–m2–

1

WH

–f5-

2

GY

BK–

f6–1

GY

BK–

u2a

GY–

f2

GY

BK–

u2b

WH–b4WH–b3WH–b2WH–b1

BK–h3+h4W

GV

T–e1

BU

WH

–e6–

1

VT–

b1–2

YE

–f4

GY

RD

–m3

Tim

er –

u

1b1a12a2

4b4a4

6b6a6

8b8a8

3b3a3

5b5a5

7b7a7

2b

2 WH–b5

13

45

6U

–12/

BN

–f3

Term

inal

Blo

ck –

1L

BK–

a1–4

a

WH

–a1–

3a

GN

YE

–PE

–1G

NY

E–m

3

GN

YE

–r1

GN

YE

–PE

–2

L1 N PE

3

GY

RD

–u1b

WH

GN

–f5–

3B

K–k1

BN

–s2

GN

YE

–1L–

PE

3

Dra

in M

otor

– m

3

L1

BN

WH

–h3

Ree

d S

witc

h –

e3

WH

RD

–e1

N S

h3 Rin

se

h4 Cle

an

BN

WH

–e3

BK–

a1–3

BK–

u–12

–6

VT–

b1–2

a

Hig

h Li

mit

– f5

RD

–r1

WH

–u7a

WH

–f3

WH

GN

–a1–

3W

HG

N–m

3

185˚

F

1

23

Hig

h Li

mit

– f6

GY

BK–

u2a

WH

–f4

WH

–f3

BU

RD

–r1

185˚

F

1

23

BN

–m3

BU

–e6–

2

Wat

er S

olen

oid

– s2

Full

WH

–f2

WH

–1L–

N

WH

GN

–f5–

3B

K–h3

+h4

WH

RD

–e1

BK–

1L–L

1

WH

–f2

WH

VT–

e1W

H–u

–12–

1W

H–u

–12–

2W

H–u

–12–

3W

H–u

–12–

4W

H–u

–12–

5

3a3

4a4

567 4 3 2 1

a1b1

h1

8

VT–

h4VT–

u3a

2a2

Gro

und

– P

E

GN

YE

–1L–

PE

32

GN

YE

–1L–

PE

31

1M

Ther

mos

tats

– f2

, f3

& f4

On/

Off

Sel

ecto

r Sw

itch

– a1 b/

Cle

an/R

inse

Aid

Lam

ps –

h3/

h4

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

SM

I 705

2/70

56

UC

/14

up to

FD

74

01an

d S

MU

705

2/70

56

UC

/14

up to

FD

74

06

Page 45: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #14c/u 1 737 203 490

BK–

m3

BK–

m2–

2B

N–m

2–3

BU

RD

–f6–

3G

NY

E–1

L–P

E3

GN

YE

–m2

RD

–f5–

1

Hea

ting

Ele

men

t – r1

RD

–b8

WH

VT–

u2

Doo

r Sw

itch

– e1

WH

RD

–a1–

4

WH

GN

–u3b

BK–

k1

BN

–k1

GN

YE

–r1

Circ

ulat

ion

Mot

or –

m2

1

23

WH

–f5–

2W

H–f

6–2

YE

–u7b

161˚

F

WH

–f6–

2

BN

–u5a

125˚

F

f3

VT–

b2G

N–b

6

GY–

u1a

105˚

F

f2f4

Floa

t Sw

itch

– e6

14

2

BU

WH

–u5b

BU

–s2

WH

GN

–m2–

1

WH

–f5–

2

GY

BK–

f6–1

GY

BK–

u2a

GY–

f2

GY

BK–

u2b

BURD–b3YE–b7

WH–b5BNWH–b4BK–h3+h4

WH

VT–

e1W

HR

D–e

3

BU

WH

–e6–

1

VT–

b–2b

YE

–f4

GY

RD

–m3

Tim

er –

u

1b1a12a2

4b4a4

6b6a6

8b8a8

3b3a3

5b5a5

7b7a7

2b

2 VTBK–b1

13

45

6

BN

–f3

Term

inal

Blo

ck –

1L

BK–

a1–4

a

WH

–a1–

3a

GN

YE

–PE

–1G

NY

E–m

3

GN

YE

–r1

GN

YE

–PE

–2

L1 N PE

3

GY

RD

–u1b

WH

GN

–f5–

3B

K–k1

BN

–s2

GN

YE

–1L–

PE

3

Dra

in M

otor

– m

3

L1

BN

WH

–h3

Ree

d S

witc

h –

e3

WH

RD

–u2

N S

h3 Rin

se

h4 Cle

an

BN

WH

–e3

BK–

a1–3

BK–

u–L2

–6

VT–

b1–2

a

Hig

h Li

mit

– f5

RD

–r1

WH

–u7a

WH

–f3

WH

GN

–a1–

3W

HG

N–m

318

5˚F

1

23

Hig

h Li

mit

– f6

GY

BK–

u2a

WH

–f4

WH

–f3

BU

RD

–r1

185˚

F1

23

BN

–m3

BU

–e6–

2

Wat

er S

olen

oid

– s2

Full

RD

–e1

WH

–1L–

N

WH

GN

–f5–

3B

K–h3

+h4

WH

RD

–e1

BK–

1L–L

1

YE

–u–1

2–3

GN

–f2

WH

–u–1

2–4

BN

WH

–u–1

2–5

BU

RD

–u–1

2–2

VT–

f2V

TBK–

u–12

–1

3a3

4a4

567 4 3 2 1

a1b1

h1

8

VT–

h4VT–

u3a

2a2

Gro

und

– P

E

GN

YE

–1L–

PE

32

GN

YE

–1L–

PE

31

1M

Mot

or C

apac

itor –

k1

U–1

2/

Ther

mos

tats

– f2

, f3

& f4

On/

Off

Sel

ecto

r Sw

itch

– a1 b/

Cle

an/R

inse

Aid

Lam

ps –

h3/

h4

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

SM

I 705

2/70

56

UC

/14

abov

e FD

74

02an

d S

MU

705

2/70

56

UC

/14

abov

e FD

74

07

Page 46: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #15c/u 1 737 203 490

1 739 910 823P

RE

–WA

SH

PR

E–R

INS

ED

RY

ING

WA

SH

W/

HE

ATR

INS

E W

/ H

EAT

T I M E R C O N T A C T S P R O G R A M

TIM

E IN

SE

CO

ND

STI

ME

R P

OS

ITIO

N

OP

ER

ATIO

N

WA

SH

/RIN

SE

125˚

F/16

1˚F

105˚

F/16

1˚F

161˚

F/16

1˚F

161˚

F/16

1˚F

161˚

F/16

1˚F

1 2 3 4 5 6 7 8 11

WA

SH

STA

LL

105˚

F Th

erm

osta

tD

rain

ing

125˚

F Th

erm

osta

tFi

lling

Hea

ting

Dry

ing

Tim

er M

otor

161˚

F Th

erm

osta

t

Rin

se &

Hol

d

Reg

ular

Qui

ck W

ash

Pot

s &

Pan

s

a b a b a b a b a b a b a b a b

12

34

56

78

910

1112

1314

1516

1718

1920

2122

2324

2526

2728

2930

3132

3334

3536

3738

3940

4142

4344

4546

4748

4950

5152

5354

5556

5758

5960

OFFOFF

2.5

60

115

25303090120120

120120606030303030

6060606012060606060120f3f3 / f4

30

60606012060606060602.5

f352.5

3060

6060

f3 / f4f3 / f2

3030

6060

P

UU+P

P

PF+UU+HU+HU+HU+HUUUUUU+PPF+U

PF+UU

UPF+UU+H

PF+U

U

UU

U+HU+HU+HUU+HU+HU+HPTTTTTTHP

U

F+UF+UUU

RIN

SE

STA

LL

161˚

161˚

12 13 14 15 16 17 18 19

K

R

125˚

161˚

105˚

161˚

161˚

161˚

161˚

161˚

Eco

nom

y

Ligh

t Chi

na

Cle

an L

amp

Circ

ulat

ion

Reg

ular

Eco

nom

y–C

hina

Qui

ck W

ash

Rin

se &

Hol

dS

TAR

T

OP

ER

ATIO

N K

EY

DR

AIN

ING

P=

FILL

ING

F=

CIR

CU

LATI

ON

U=

DE

TER

GE

NT

DIS

PE

NS

ING

R=

RIN

SE

–AID

DIS

PE

NS

ING

K=

DR

YIN

GT

=R

AP

ID A

DVA

NC

E••

•=

HE

ATIN

GH

=

SM

I/S

HU

705

2/70

56

all

Page 47: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #16c/u 1 737 203 490

b1

L1a1

e1u3

u5u2

2a

u7u1 10

5˚F

uK4a

4

3a3

bb

aa

ba

bb

ba

aa

51

N1

23

45

67

89

1011

12

12–6

1314

14

f218

5˚F

f6f3

f4

125˚

F16

1F

h1e3

r1

185˚

F

f5

m2

h4e6 s2

m1

m3

h3uK

1716

15124

1

5

2

7 3

3

4

1b/

512

/

b/6

2

b–8

b3b2

a1b1

b2b3

b4b5

b6

2

Sym

bol K

ey

a1O

N/O

FF S

WIT

CH

2e1

DO

OR

SW

ITC

H4

e6FL

OAT

SW

ITC

H8

e3R

EE

D S

WIT

CH

4

f3TH

ER

MO

STA

T 12

5˚F

9f2

THE

RM

OS

TAT

105˚

F13

f4TH

ER

MO

STA

T 16

1˚F

10f5

HIG

H L

IMIT

185

˚F5

f6H

IGH

LIM

IT 1

85˚F

5

Sym

bol K

ey

h1O

N/O

FF L

AM

P3

h3R

INS

E A

ID L

AM

P4

h4C

LEA

N L

AM

P7

m1

TIM

ER

MO

TOR

11m

2C

IRC

ULA

TIO

N M

OTO

R6

m3

DR

AIN

MO

TOR

12r1

HE

ATIN

G E

LEM

EN

T5

s2W

ATE

R S

OLE

NO

ID8

ukR

AP

ID A

DVA

NC

E S

OLE

NO

ID14

curr

ent p

ath

curr

ent p

ath

u–TI

ME

R C

ON

TAC

TS–

Sel

ecto

r Sw

itch

Con

tact

s

EC

ON

OM

Yb3

QU

ICK

WA

SH

b2R

INS

E &

HO

LDb1

LIG

HT

CH

INA

b4

PO

TS &

PA

NS

b6R

EG

ULA

Rb5

CA

NC

EL

DR

AIN

b1 &

b2

SM

I 705

2/70

56

UC

/14

abov

e FD

74

02an

d S

MU

705

2/70

56

UC

/14

abov

e FD

74

07

Page 48: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #17c/u 1 737 203 490

1 739 911 103

b1

L1a1

e1u3

u5u2

2a

u7u1

uK4a

4

3a3

bb

aa

ba

bb

ba

aa

51

N1

23

45

67

89

1011

12

12–6

1314

14

185˚

F

f6f3

f4

125˚

F16

1F

h1

r1

185˚

F

f5

m2

h4e6 s2

m1

m3

uK

1716

15124

1

5

2

7 3

3

4

1b/

512

/

b–8

b3a1

b1b3

b5b6

2

Sym

bol K

ey

curr

ent p

ath

a1O

N/O

FF S

WIT

CH

2e1

DO

OR

SW

ITC

H4

e6FL

OAT

SW

ITC

H8

f3TH

ER

MO

STA

T 12

5˚F

9f4

THE

RM

OS

TAT

161˚

F10

f5H

IGH

LIM

IT 1

85˚F

5f6

HIG

H L

IMIT

185

˚F

5

Sym

bol K

ey

curr

ent p

ath

h1O

N/O

FF L

AM

P3

h4C

LEA

N L

AM

P7

m1

TIM

ER

MO

TOR

11m

2C

IRC

ULA

TIO

N M

OTO

R6

m3

DR

AIN

MO

TOR

12r1

HE

ATIN

G E

LEM

EN

T5

s2W

ATE

R S

OLE

NO

ID8

ukR

AP

ID A

DVA

NC

E S

OLE

NO

ID14

Sel

ecto

r Sw

itch

Con

tact

s

EC

ON

OM

Yb3

RIN

SE

& H

OLD

b1

PO

TS &

PA

NS

b6R

EG

ULA

Rb5

CA

NC

EL

DR

AIN

b1 &

b3

u–TI

ME

R C

ON

TAC

TS–

SM

U 4

092

/40

96

Page 49: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #18c/u 1 737 203 490

1 739 911 102

BK–

m3

BK–

m2–

2B

N–m

2–3

Cap

acito

r – k

1

BU

RD

–f6–

3G

NY

E–1

L–P

E3

GN

YE

–m2

RD

–f5–

1

Hea

ting

Ele

men

t – r1

RD

–b8

WH

VT–

u2

Doo

r Sw

itch

– e1

WH

RD

–a1–

4

WH

GN

–u3b

BK–

k1

BN

–k1

GN

YE

–r1

Circ

ulat

ion

Mot

or –

m2

1

23

WH

–f5–

2W

H–f

6–2

YE

–u7b

161˚

F

WH

–f6–

2

BN

–u5a

125˚

F

f3f4

Floa

t Sw

itch

– e6

14

2

BU

WH

–u5b

BU

–s2

WH

GN

–m2–

1

WH

–f5–

2

GY

BK–

f6–1

GY

BK–

u2a

GY–

b6

GY

BK–

u2b

BURD–b3YE–b7

WH–b5BNWH–b4

BK–a1–3

WH

VT–

e1

BU

WH

–e6–

1Y

E–f

4

GY

RD

–m3

Tim

er –

u

1b1a12a2

4b4a4

6b6a6

8b8a8

3b3a3

5b5a5

7b7a7

2b

2 VTBK–b1

13

45

6U

–12

BN

–f3

Term

inal

Blo

ck –

1L

BK–

a1–4

a

WH

–a1–

3a

GN

YE

–PE

–1G

NY

E–m

3

GN

YE

–r1

GN

YE

–PE

–2

L1 N PE

3

GY

RD

–u1b

WH

GN

–f5–

3B

K–k1

BN

–s2

GN

YE

–1L–

PE

3

Dra

in M

otor

– m

3

L1

BN

WH

–h3

Ree

d S

witc

h –

e3

WH

RD

–u2

N S

RD

–r1

WH

–u7a

WH

–f3

WH

GN

–a1–

3W

HG

N–m

318

5˚F

1

23G

YB

K–u2

a

WH

–f4

WH

–f3

BU

RD

–r1

185˚

F1

23

BN

–m3

BU

–e6–

2

Wat

er S

olen

oid

– s2

Full

RD

–e1

WH

–1L–

N

WH

GN

–f5–

3B

K–u–

12–6

WH

RD

–e1

BK–

1L–L

1

YE

–u–1

2–3

GN

–u1a

WH

–u–1

2–4

BN

WH

–u–1

2–5

BU

RD

–u–1

2–2

VTB

K–u–

12–1

3a3

4a4

567 4 3 2 1

a1

b

h1

8

Gro

und

– P

E

GN

YE

–1L–

PE

32

GN

YE

–1L–

PE

31

1M

Hig

h Li

mit

– f5

Hig

h Li

mit

– f6

Ther

mos

tats

– f3

& f4

On/

Off

Sel

ecto

r Sw

itche

s –

a1 &

b

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

SM

U 4

092

/40

96

Page 50: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #19c/u 1 737 203 490

PR

E–W

AS

HP

RE

–RIN

SE

DR

YIN

GW

AS

H W

/ H

EAT

RIN

SE

W/

HE

AT

T I M E R C O N T A C T S P R O G R A M

TIM

E IN

SE

CO

ND

STI

ME

R P

OS

ITIO

N

OP

ER

ATIO

N

WA

SH

/RIN

SE

161˚

F/16

1˚F

125˚

F/16

1˚F

161˚

F/16

1˚F

1 2 3 4 5 6 7 8 11

WA

SH

STA

LL

Ava

nce

Dra

inin

g

125˚

F Th

erm

osta

tFi

lling

Hea

ting

Dry

ing

Tim

er M

otor

161˚

F Th

erm

osta

t

Rin

se &

Hol

d

Reg

ular

Pot

s &

Pan

s

a b a b a b a b a b a b a b a b

12

34

56

78

910

1112

1314

1516

1718

1920

2122

2324

2526

2728

2930

3132

3334

3536

3738

3940

4142

4344

4546

4748

4950

5152

5354

5556

5758

5960

OFFOFF

2.5

60

115

25303090120120

120120606030303030

6060606012060606060120f3f3 / f4

30

60606012060606060602.5

f352.5

3060

6060

f3 / f4f3

3030

6060

P

UU+P

P

PF+UU+HU+HU+HU+HUUUUUU+PPF+U

PF+UU

UPF+UU+H

PF+U

U

UU

U+HU+HU+HUU+HU+HU+HPTTTTTTHP

U

F+UF+UUU

RIN

SE

STA

LL

161˚

161˚

12 13 14 15 16 17 18 19

K

R

161˚

161˚

125˚

161˚

Eco

nom

y

Cle

an L

amp

Circ

ulat

ion

Reg

ular

Eco

nom

y–C

hina

Qui

ck W

ash

Rin

se &

Hol

dS

TAR

T

OP

ER

ATIO

N K

EY

DR

AIN

ING

P=

FILL

ING

F=

CIR

CU

LATI

ON

U=

DE

TER

GE

NT

DIS

PE

NS

ING

R=

RIN

SE

–AID

DIS

PE

NS

ING

K=

DR

YIN

GT

=R

AP

ID A

DVA

NC

E••

•=

HE

ATIN

GH

=

SM

U 4

092

/40

96

Page 51: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #20143-62106-001

>E

2

N32 N

2.4

N2.

2

N31

.S

H2

HS2

4

P1

HS2

4

P1

HS 2

4

P1

H3

>>

44A

N1.

4N

1.4AH

10 H1

N1.

2N

34.

2BN

32.S

E1

E10

N31

N33

>E

3

N3.

4

N3.

2N

4.P

1N

34.

2B

E4

N3

4 H4

1A1B

2A2B

N4.

4N

4.2N31

.SN

35.S

N31

.H

N32

.HN

33.H

N4.

P2

N3

4.1B

H1

H2

H3

H4

L1 L2 X7

GN

D

1 2 3 4

N1.

P1

N2.

P1

N3.

P2

N4.

P2

N3.

P1

N1.

P2

N4.

P1

N2.

P2

N1.

P2

N1.

S2

H7

N4.

S2

N1.

4

N1.

4

N4.

S1

N1.

S1

H7

X7.

3N

31.2

X7.

1

S1

S2

P2

24

P1

S1

S2

P2

24

P1

4A4

E1.

4

N31

.4E

10.4

A

H10

H7

N1

N4

N2.

S1

H1–

5X

7.4

N3

4.2A

X7.

2N

33.S

N1.

S2

N2.

S2

E4

N4.

S1

S1

S2

P2

24

P1

N2

N3.

S1

X7.

3N

32.2

X7.

1

N4.

S2

N3.

S2

N32

.4

N2.

S1

S1

S2

P2

24

P1

N3

N3.

P1

N3.

S1

X7.

4N

33.2

X7.

2

N2.

S2

N33

.4

E1

Ele

men

t10

00W

SY

MB

OL

KE

Y

E10

Ele

men

t13

00W

E2

Ele

men

t15

00W

E3

Ele

men

t17

00W

E4

Ele

men

t18

00W

H1

Hea

t Ind

icat

or L

amp

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Reg

ulat

or, D

ual Z

one

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Reg

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ator

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Reg

ulat

or

H2

Hea

t Ind

icat

or L

amp

H3

Hea

t Ind

icat

or L

amp

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t Ind

icat

or L

amp

H7

On

Lam

pH

10D

ual Z

one

Indi

cato

r Lam

p

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Term

inal

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ck

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mos

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mos

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mos

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imit

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embl

y–

Hig

h Li

mit

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erm

osta

t

NK

T 71

Page 52: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #21143-62105-002

P>

P>

P>

P>

L1

X7

1 2

L2G

ND

X7

3 14

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S2

S1

S2

S1

S2

S1

S2

2P1

2P1

2P1

2P1

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N1

E1

E2

H10

E3

E4

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N3

N4

N2

N3

N4

N1

H1

H2

H3

H4

H7

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N32

N33

N3

4

S HN

31

2 4P1

2 P1

2 P1

2A 1A

N32

N33

N3

4

S H

S H

2B 1B

4 P2

N1

4A 4

4E

104A

N32

4N

334

N2

4 P2

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4 P2

N4

4 P2

23

45

67

89

1011

1213

1415

1617

1819

2021

2223

2425

2627

2829

30

31

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RR

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T PA

TH 15E

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ent

1000

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men

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men

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ent

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W

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eat I

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ator

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p

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ual Z

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ator

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ator

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t Ind

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or L

amp

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ator

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t Ind

icat

or L

amp

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n La

mp

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ual Z

one

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cato

r Lam

p

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mos

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embl

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igh

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bly

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mit

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mos

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mos

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imit

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embl

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igh

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mos

tat L

imit

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embl

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igh

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it27

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erm

osta

t

SY

MB

OL

KE

Y

NK

T 71

Page 53: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #22143-62106-001

>

>

E2

N32 N

2.4

N2.

2

N31

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H2

HS2

4

P1

HS2

4

P1

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4

P1

HS 2

4

P1

44A

N5.

4N

5.4AH

50 H5

H3

N5.

2N

34.

2BN

33.S

E5

E5

0

N35

>>

44A

N1.

4N

1.4AH

10 H1

N1.

2N

34.

2BN

32.S

E1

E10

N31

N33

>E

3

N3.

4

N3.

2N

4.P

1N

35.S

E4

N3

4 H4

1A1B

2A2B

N4.

4N

4.2N31

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35.S

N31

.H

N32

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35.H

N33

.H

N4.

P2

N3

4.1B

H1

H2

H5

H3

H4

L1 L2 X7

GN

D

1 2 3 4

N1.

P1

N5.

P1

N1.

P2

N5.

P2

N2.

P1

N2.

P2

N4.

P1

N4.

P2

N1.

P2

N1.

S2

H7

N4.

S2

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4

N1.

4

N4.

S1

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S1

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4N

31.2

X7.

1

S1

S2

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24

P1

S1

S2

P2

24

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4

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10.4

A

H10

H7

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N4

N2.

S1

H1–

5X

7.3

N3

4.2A

X7.

2N

33.S

N1.

S2

N2.

S2

E4

N4.

S1

S1

S2

P2

24

P1

N2

N5.

S1

N3.

P2

X7.

3N

32.2

X7.

2N

3.P

1

N4.

S2

N5.

S2

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.4

N5.

S1

S1

S2

P2

24

P1

N3

N3.

S1

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P2

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3.S

1N

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1

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S1

S2

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24 4

4A

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1

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4

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4E

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0

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Ele

men

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Ele

men

t13

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Ele

men

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Ele

men

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Ele

men

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men

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ual Z

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inal

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ck

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t Ind

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t Ind

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On

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ual Z

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mos

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mos

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mos

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bly

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igh

Lim

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Ther

mos

tat

SY

MB

OL

KE

Y

NK

T 91

Page 54: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #23143-62105-002

P>

P>

P>

P>

P>

L1

X7

1 2

L2G

ND

X7

3 14

S1

S2

S1

S2

S1

S2

S1

S2

S1

S2

2P1

2P1

2P1

2P1

2P1

N1

N1

E1

E2

H10

E3

E4

E5

E5

0H

50

N2

N3

N4

N5

N2

N3

N4

N5

N1

H1

H2

H3

H4

H5

H7

N31

N32

N33

N3

4N

35

S HN

31

2 4P1

2 P1

2 P1

2A 1A

N32

N33

N3

4N

35

2 P1

S H

S H

S H

2B 1B

4 P2

N1

4A 4

44

E10

4A

N32

4N

334

N2

4 P2

N3

4 P2

N4

4 P2

N5

N5

4

4

4

4A4A

P2

23

45

67

89

1011

1213

1415

1617

1819

2021

2223

2425

2627

2829

30

31CU

RR

EN

T PA

TH 15E

1E

lem

ent

1000

W17

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Ele

men

t13

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2E

lem

ent

1500

W23

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Ele

men

t17

00W

25E

4E

lem

ent

1800

W27

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Ele

men

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50

Ele

men

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ator

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ual Z

one

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ator

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ator

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ator

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ulat

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ual Z

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al B

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t Ind

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ator

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t Ind

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mit

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mos

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OL

KE

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T 91

Page 55: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #24

OFF

TIM

ER

MA

NU

AL

SW

1

SW

2

CS

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BA

KE

BR

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20

20

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18

18

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20

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20

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16

18

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20

20

20

2020

20

20

20

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20 20

20

20

20

20

20

20

20

20

123

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CFT

(14

0 f) BR

BR

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78

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11 f)

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31

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2C

SW

BR

R

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W

BR

BR

BR

BR

W

SW

1

W/B

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W/B

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13a

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LW

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21

R

E3

E4

E6

N E5

F2

L

CV

F1 L1

E6

E5

HB

L 53

Page 56: Bosch Dishwasher SHU Complete Troubleshooting Guide

D

IAG

RA

M #

25

UM

DWM

LM

5

N

TB

L2L1

4321

132

132

SW

2 12S

W2 14

UE

O

UE

I

C1

OL1

CF

CF

OL2

OL2

SW2 9

CFT

1234

65S

W1 1

SW1 5

1

2

3

C1

C1

C1

WTH

RB

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SW

2 14A

SW1 5A

ST2

ST3

C1

C1 C1 C2

C1

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L1

ON

L

78

TP

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CSW 1LDT 12

LDT 14

GN LDTST1PTH

112131

142434

12

LDL

TP5

TP4

TP2

LDL

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W2

PR-N

SW2 10

SW1 4

A

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RB -J1

OL1

OL1

DRM

C

123

CVL1

F2F1

RB

SW1 1A

SW

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11a

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CF

PR

E3E6E4NE5L

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LDL

ONLWTH

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4a

2a1a

87654321

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6a5a4a3a2a1a

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SW1

SW2

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SW2 16

SW2 11

SW2 15

TB2

W/BL

W/R

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TB1LEO

LEI

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C1

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W/BL

W/BK

WW/RW/RW/Y

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W/Y

W/R

C2

C2

BR

W

C2

C2

C2

C2

W/R

BL

BRW/BL

WBL

BL

GY

R

C3

C2

GN

W/B

L

RW

W/B

L

R

BK

W/Y

W/BK

W/BL

W/R

BR

R

W/R

W

W

BRW/R

BL

W/BL

WGY

BL

GYBR

BRW/BL

W/RR

W/R

BL

GY

BKBR

W/B

K

W/B

K

GY

BK

BR

R

R

W/BK

W/BL

W/BL

RRED

WWHITE

BKBLACK

BRBROWN

GYGRAY

GNGREEN

BLBLUE

W/BKWHITE/BLACK

W/RWHITE/RED

W/YWHITE/YELLOW

W/BLWHITE/BLUE

WIRE COLOR CODE

SYMBOL KEY

PR:TIMER

SW:PROGRAM SELECTOR

CSW:CLEAN SWITCH

OL:OVEN LAMP

WTH:VARIABLE THERMOSTAT

CFT:COOLING FAN THERMOSTAT

LDT:LOCKING DOOR THERMOSTAT

PTH:SELF CLEAN THERMOSTAT

ST:HIGH LIMIT THERMOSTAT

BE:BROIL ELEMENT2000W

UEO:UPPER ELEMENT, OUTER RING500WUEI:UPPER ELEMENT, INNER RING500W

LEO:LOWER ELEMENT, OUTER RING600WLEI:LOWER ELEMENT, INNER RING1400W

C:CATALYSTCF:COOLING FAN MOTOR

ONL:ON INDICATOR

LDL:DOOR LOCKED INDICATOR

MSW:MANUAL SWITCHLM:DOOR LOCKING MOTOR

DRM:DOOR MICROSWITCH

UM:UP MICROSWITCH

DWM:DOWN MICROSWITCH

RB:RELAY BOARD

TB:TERMINAL BLOCKTP:TEST POINT

GN

W/Y

WW

/RW

/Y

JUMPER CONNECTEDFOR 208V ONLY

HBL 53

Page 57: Bosch Dishwasher SHU Complete Troubleshooting Guide

D

IAG

RA

M #

26

Jumper Connectedfor 208V Only

TB

W/R

W/B

L

L1

L2

NGN 14

1

2

3

4

5

6

Red

Black

White

16 AWG

16 AWG

16 AWG

14 AWG

18

18

1616

16

20

20

207

7a20

2020

2020

20

16

16

16

1

1a

16

17a

18a

16a

15a

14a

44a

16

16

16

1616

16

16

18

18

18

18

18

18

18

18

16

16

20

20

20

2

2a

20202020

20 20

20

20

16

16

161616

16 16

20

20

20

20

20

20

20

20

20 20

1a1

20

16

18

20

2020

20

16

20

20

20

20

20

20

20

2020

20

20

20

20 20

20

20

20

1

2 3

SW1

CFT(140 f)

BR

BRGY

CF

78

W11

1214

W/R

W/R

W/YW/BL

W/BL

W/BK

W/BL

BL

BL

BL

BL

PTH(890 f)

ST3(205 f)

CSW

CSW

W

DRM

RW/R

W/R

W/BK

W/Y

BK

W/BL

W/BL

BL

ST1(572 f)

24

DWM

PR

R

MSW

RB

LDT(518 f)

TP1TP2TP3TP4TP5TP6

GY

UMBL

LDL

LMST2(311 f)

BR

C

WTH34

31

BE REUEIUEOLEILEO

OLOL

SW2

CSW

BR

R

R

BK

W

BR

BR

W

SW1

W/BL

W/BL

W/R

GY

13a

11a

12a

10a

9a

8a

7a

6a

5a

3a

4a

2a

1a

16

17

18

14

15

13

11

10

9

8

6

5

4

3

2

1

7

12R

W/R

W/BK

W/YW/R

GY

GY

ONL

W/BLW/R

21

R

E3

E4 E6

N

E5

F2

L

CV

F1

L1

E5

E6

WM

OFF TIMERMANUAL

SW1

SW2

CSW

BROILTHERMALBAKE

SELFCLEAN

CONVTHAW

CONVBROIL

CONVROAST

CONVBAKE

161514

1213

1110

9

8

7

6

5

4

3

2

1 1a

16a

14a15a

13a

11a

10a

9a

8a

6a

7a

5a

3a

4a

12a

2a

1a2a4a

124

MSW1a1

17181920

17a18a19a20a

RRED

WWHITE

BKBLACK

BRBROWN

GYGRAY

GNGREEN

BLBLUE

W/BKWHITE/BLACK

W/RWHITE/RED

W/YWHITE/YELLOW

W/BLWHITE/BLUE

WIRE COLOR CODE

SYMBOL KEY

PR:TIMER

SW:PROGRAM SELECTOR

CSW:CLEAN SWITCH

OL:OVEN LAMP

WTH:VARIABLE THERMOSTAT

LDT:LOCKING DOOR THERMOSTAT

PTH:SELF CLEAN THERMOSTAT

ST:HIGH LIMIT THERMOSTATRE:RING ELEMENT2500W

BE:BROIL ELEMENT2000W

UEO:UPPER ELEMENT, OUTER RING500WUEI:UPPER ELEMENT, INNER RING500W

LEO:LOWER ELEMENT, OUTER RING600WLEI:LOWER ELEMENT, INNER RING1400W

C:CATALYSTCF:COOLING FAN MOTOR

WM:CONV. FAN MOTOR

ONL:ON INDICATOR

LDL:DOOR LOCKED INDICATOR

MSW:MANUAL SWITCHLM:DOOR LOCKING MOTOR

DRM:DOOR MICROSWITCH

UM:UP MICROSWITCH

DWM:DOWN MICROSWITCH

RB:RELAY BOARD

TB:TERMINAL BLOCKTP:TEST POINT

CFT:COOLING FAN THERMOSTAT

HBL 54

Page 58: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #27

WM

RE

UM

DW

MLM

5N

TB

L2L1

43

21

132

132

132

SW2 13SW2 15

UEO

UEI

W/R

W/BL

R

W

GN

GN

GN

BL

W

BK

R

BK

OL1

CF

W

BL

C1

C1

CF

WM

0L2

SW1 8

CFT

GY

R

BL B

L

W/B

L

W/R

W

/R

W

W

W/Y

W/Y

W/R W/Y

1 2 3 4 65W

/Y

W

BR

BR

W/B

K

SW1 6

SW1

7

1

2

3C1

C1

WTH

RB-CV

SW2 14A

SW

1 7A

ST2

ST3

C1

C1

C1

C1

C2

OL1

ONL

78

TP

C2

LM

CS

W 1

LDT

12

LDT

14

OL1 W

W/BK

OL2

C1

SW

1 10

SW2 11

C1

GN

BL LD

TS

T1P

TH

BR

2131

1424

34

12

LDL

TP5

TP4

W/R

BR

W/Y

GY

TP2

LDL

W

C2

C2

C2

C2

C2

C2

CSW2

PR

-N

W/R

BR

W/B

L

SW1

9

SW1 1

A

SW

1 8

RB-J1

W

BL OL1

WM

DR

M

C

BL

GY

R

C3

W/B

L

W/B

K

W/Y

BK

CV

L1 F2

F1R

B

SW

1 6A

SW1 1

J1 B

R

11a

MS

W

CF

GN

PR

E3

E6

E4

N E

5L

R

W

W/BL

R

R

SW

1 2A

LDL

ON

L

W/Y

W

W/R

W

BL

WTH

CS

W

W

/BL

W

GY

4 2 1

4a 2a 1a

W/BL

BL

BR

W

/R

UM

3 C

2

BL

DR

M2

MS

W1

BK

W/Y

10 9 8 7 6 5 4 3 2 1

10a 9a 8a 7a 6a 5a 3a 2a 1a

20 19 18 17 16 15 14 13 12 11

20a

19a

18a

17a

16a

15a

13a

14a

11a

SW

1

SW

2

GY

B

R

W/R

G

Y

W/B

K

BK

W/B

K

RB

-F2

PR

-LR

W/B

L

W/B

L

C3

BR

GY

BR

BR

W

/Y

W/R

R

W

/BK

ST2

ST3CF

OL1CTF 3CTF 1REBETB1CTB2LEI

LEO

MV

CFC1

C1

GY

B

R

SW

2 17

SW2

12

SW

2 16

TB2 TB

1W/B

L

LEO

LEI

W/R

R U

EI

RR

ED

WW

HIT

E

BK

BLA

CK

BR

BR

OW

N

GY

GR

AY

GN

GR

EE

N

BL

BLU

E

W/B

KW

HIT

E/B

LAC

K

W/R

W

HIT

E/R

ED

W/Y

WH

ITE

/YE

LLO

W

W/B

LW

HIT

E/B

LUE

WIR

E C

OLO

R C

OD

E

SY

MB

OL

KE

Y

PR

:TIM

ER

SW

:PR

OG

RA

M S

ELE

CTO

R

CS

W:C

LEA

N S

WIT

CH

OL:

OV

EN

LA

MP

WTH

:VA

RIA

BLE

TH

ER

MO

STA

T

CFT

:CO

OLI

NG

FA

N T

HE

RM

OS

TAT

LDT:

LOC

KIN

G D

OO

R T

HE

RM

OS

TAT

PTH

:SE

LF C

LEA

N T

HE

RM

OS

TAT

ST:

HIG

H L

IMIT

TH

ER

MO

STA

T

BE

:BR

OIL

ELE

ME

NT

2000

W

UE

O:U

PP

ER

ELE

ME

NT,

OU

TER

RIN

G5

00W

UE

I:U

PP

ER

ELE

ME

NT,

INN

ER

RIN

G5

00W

LEO

:LO

WE

R E

LEM

EN

T, O

UTE

R R

ING

600

WLE

I:LO

WE

R E

LEM

EN

T, IN

NE

R R

ING

1400

W

C:C

ATA

LYS

TC

F:C

OO

LIN

G F

AN

MO

TOR

ON

L:O

N IN

DIC

ATO

R

LDL:

DO

OR

LO

CK

ED

IND

ICAT

OR

MS

W:M

AN

UA

L S

WIT

CH

LM:D

OO

R L

OC

KIN

G M

OTO

R

DR

M:D

OO

R M

ICR

OS

WIT

CH

UM

:UP

MIC

RO

SW

ITC

H

DW

M:D

OW

N M

ICR

OS

WIT

CH

RB

:RE

LAY

BO

AR

D

TB:T

ER

MIN

AL

BLO

CK

TP:T

ES

T P

OIN

T

BE

UEO

PTH

34

SW

2 14

SW

2 9

C1

C

OL2

GN

BL

ST2DWM2

DWM1

LDT14

PTH34UM3

TP3UM2

LM

C2

JUM

PE

R C

ON

NE

CTE

DFO

R 2

08V

ON

LY

HB

L 5

4

Page 59: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #28

RE

BE

UEI

LEI

LEO

UEO

BE

UEI

LEI

LEO

UEO

L

UPPER OVEN

LOWER OVEN

SW1

SW1

17a

18a

19a

20a

16a

15a

14a

20

13a

11a

12a

10a

9a

8a

7a

6a

5a

3a

4a

2a

1a

16

17

18

19

20

14

15

13

11

10

9

8

6

5

4

3

2

1

7

12

16a

SW2

SW2

SW

2TSW

14a

15a

13a

11a

12a

10a

9a

8a

6a

7a

5a

5a

5

4a

3a

2a

1a

16

14

15

13

11

10

9

8

6

5

4

3

2

1

7

12

BR

BK

W/B

K

W/BK

W/R

W/R

2020

20

78

20

20

20

20

20 20

20

20

2012 14

11

20

20

20

20 20

20

20

20 20

2020

JUMPERS CONNECTED FOR 208V ONLY

16

2020

20

20

20

20

20

20

20

20

20

20

20

20

12

11

14

2020

20

20

20

20

20

20

20

20

10 A

WG

14 A

WG

12 A

WG

12 A

WG

20

20

2020

1616

2020

2020

20

20

16

16

16 16

16

16 16

16

16

16

16

31

34

7a

2a 4a

1a

72

4

1

16

18

18

18

14

14

16

16

18

18

18

18

18

16

20

207

7a

8

8a

20

20

10a

3a

4a

13a

14a

11a

5a

12a

6a6

12

5

11

14

13

4

10

3

16

16

16

16

21 24

16

16a

16

16

18

18

N

E5

E4

E6

F2

CV

L

E3

L1

F1

E5

16

20

16

20

18

18

18

18

18

16

16 16

16

20

34

31

16

16

16

1616

1

1

1a

2a

4a

4

2

2a

2

1a

2020

20

20

20 20

20

20

20

20

20

2020

2016

16

20

BR

BR

R

BR

BR

BL

W/Y

W

BK

BK

W/R

CFT(140 f)

ST2(311 f)

W/B

K

GY

W/R

GY

GY

W/BL

W/BL

W/B

L

W/BL

W/BLOL

OL

WM

PTH(890 f) ST3

(205 f)

WTH

CSW

CSW DRMGY

LDT(518 f)

LDL

UM

LM

BL

BL

TSW

CSW

TSWBL

BR

BR

DWM

ST1(572 f)

ST1(572 f)

2021 24 15

15a

TSW

BL

DWM

BL

BL

BL

BL

BL

BRC

W/R

W/R

W/R

W/R

W/R

TP1 TP2

N

L2

L1

TP3 TP4 TP5 TP6W/R

MTB

STB

GN

14GN

GN

R

BR

BR

BR

W/BK

BK

W/Y

W/Y

W/Y

W

GY

ONL

R

R

R

WW

WTSW

BR

BR

CFW

SW

1 R

R

R

WWW

/R

BR

RB

GY

TSW

W/BL

BL

BK

W/BK R

PR

CFT(140 f)

ST2(311 f)

GY

W/BL

W/BL

BL

BL

BLLM

OL

OL

W/R

W/R

W/RG

Y

W/BL

GY

W TSW CSWCSW

LDL

C

BL

BL

BR

CSWGY

BR

W/B

LW

/R

WTH

PTH(890 f)

ST3(205 f)

W

W/R

W/RONL

W

1

2

3

78

1

23

DRM

UM

W/Y

W/R

LDT(518 f)

GY

W/RW

TP2TP1 TP4TP3 TP6TP5

W/Y

R RED

W WHITE

BK BLACK

BR BROWN

GY GRAY

GN GREEN

BL BLUE

W/BK WHITE/BLACK

W/R WHITE/RED

W/Y WHITE/YELLOW

W/BL WHITE/BLUE

WIRE COLOR CODE

BAKEBROIL

SELF CLEAN

THAWCONV BROILCONV ROAST

OFFCONV BAKE

X X X X X X X X X X X X XX X X X X X X X XX X X X X X X X X X XX X X X X X XX X X X X X X X X X XX X X X X X X X X X X XX X X X X X X X X

X

PO

S.

1

1a

2

2a

3

3a

4

5

5a

6

6a

7

7a

8

8a

9

9a

10

10a

11

11a

12

13

13a

14

14a

15

15a

16

16a

17

17a

18

18a

19

19a

20

20a

SW1

BAKEBROIL

SELF CLEAN

OFF

X XX XX X X X XXXX XX X X XXXX

X XX X X XXXXX

PO

S.

1

1a

2

2a

3

3a

4

4a

5

5a

6

6a

7

8

8a

9

9a

10

10a

11

11a

12

13

13a

14

14a

15

16

16a

SW2

LOR

X X XXXXX X X XX X

X X XXXXX

PO

S.

1

1a

2

2a

3

3a

4

4a

5

5a

6

6a

7

7a

8

8a

9

9a

10

10a

11

11a

12

12a

13

13a

14

14a

15

15a

16

16a

TSW

MANUAL

DOWN OVEN

UP OVEN

Ø

>Ø÷500 F

SELF CLEAN

XX X

POS.1

1a

2

2a

4

4a

CSW

SYMBOL KEY

PR : TIMER

SW : PROGRAM SELECTOR

CSW : CLEAN SWITCH

OL : OVEN LAMP

WTH : VARIABLE THERMOSTAT

CFT : COOLING FAN THERMOSTAT

LDT : LOCKING DOOR THERMOSTAT

PTH : SELF CLEAN THERMOSTAT

ST : HIGH LIMIT

C : CATALYST

WM : CONV. FAN MOTOR

MTB : MAIN TERMINAL BLOCK

ONL : ON INDICATOR

LDL : DOOR LOCKED INDICATOR

STB : SECONDARY TERMINAL BLOCK

LM : DOOR LOCKING MOTOR

DRM : DOOR MICROSWITCH

UM : UP MICROSWITCH

DWM : DOWN MICROSWITCH

RB : RELAY BOARD

TP : TEST POINTTSW : TIMER SELECTOR

RE : RING ELEMENT 2500 W

BE : BROIL ELEMENT 2000 W

UEO : UPPER ELEMENT, OUTER RING 500 WUEI : UPPER ELEMENT, INNER RING 500 W

LEO : LOWER ELEMENT, OUTER RING 600 WLEI : LOWER ELEMENT, INNER RING 1400 W

123

123

456

HBL 55

Page 60: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #29A

SW2 SW2

1 2 3 4 5 6 7 8

1a 2a 3a 4a 5a 6a 8a

9 10 11 12 13 14 15 16

9a 10a11a 13a 14a 15a 16aB

R

W/B

K

GY

W/R

BR

W/B

L

WH BL

W/R BK

W/B

L

W/BL

W/B

L

WH

GY

W/R

BL

BL

W/R

R W/R

BR

W/B

L

BR

GY

W/BL

GY

GN

ST2"MTB4

TP3"

ST3"

CF"

PTH34"

ST2"

W/Y

GY

WH

W/R

LM"TP2"

TPG"UM"2

LDT"11ST1"24

DWM'1TP'3

DWM'2

PTH'34LDT'11

UM'2UM'3

LEO"LEI"

UEO"C"

UEI"BE"

UM"3OL2"

CFT"378 "

1 2 4

1a 2a 4a

WTH"CSW"

ONL"

LDL"

ONL'

LDL'

C2

CF'

W/BL

GY

R

WH

E3

E6

E4

NE5

L C1W/BLMTB3

J1

F1 F2 L1 CV

RBPR

C3DRM'3

GY

W/Y

WH

BL

BL

10 11 12 13 14 15 161 2 3 4 5 6 7

WH

BL

W/R

BR

GY

WH

TSW

-7

W/B

L

BL

R BK

W/BKBR

WH

GY

R BR

BL

W/R

W/Y

W/B

K

R W/R

W/B

L

BR

GY

WH

W/Y

SW2'2a

R

BK

BL

W/B

K

W/B

L

BK

W/B

L

C1

ST2

'

BLWH

BL

WHBL CSW'2a

WH

W/Y

8

10a 11a 12a 13a 14a 15a 16a1a 2a 3a 4a 5a 6a 7a 8a

TSW TSW

WH

W/BL

BL

W/R

1 2 4

1a 2a 4a

CSW' WTH'

C3

DRM'2MTB3 CFT'2CF' ST3'CFT'3 CFT'1OL1' WM'RE' BE'MTB1 C'MTB2 LEI'LEO'ST2'

ST2'CF'

CFT'2MTB4

MTB3

11 12 13 14 15 16 17 18

TSW13

19 20

11a 13a 14a 15a 16a 17a 18a 19a 20a

1 2 3 4 5 6 7 8 9 10

1a 1a 3a 5a 6a 7a 8a 9a 10a

SW1 SW1

PR:L

GY

C1

W/R

C4

TSW4a

BL

W/R

WH

BK

C3

DRM'1

R

R RED

W WHITE

BK BLACK

BR BROWN

GY GRAY

GN GREEN

BL BLUE

W/BK WHITE/BLACK

W/R WHITE/RED

W/Y WHITE/YELLOW

W/BL WHITE/BLUE

WIRE COLOR CODE

SYMBOL KEY

PR : TIMER

SW : PROGRAM SELECTOR

CSW : CLEAN SWITCH

OL : OVEN LAMP

WTH : VARIABLE THERMOSTAT

CFT : COOLING FAN THERMOSTAT

LDT : LOCKING DOOR THERMOSTAT

PTH : SELF CLEAN THERMOSTAT

ST : HIGH LIMIT

C : CATALYST

WM : CONV. FAN MOTOR

MTB : MAIN TERMINAL BLOCK

ONL : ON INDICATOR

LDL : DOOR LOCKED INDICATOR

STB : SECONDARY TERMINAL BLOCK

LM : DOOR LOCKING MOTOR

DRM : DOOR MICROSWITCH

UM : UP MICROSWITCH

DWM : DOWN MICROSWITCH

RB : RELAY BOARD

TP : TEST POINTTSW : TIMER SELECTOR

' : UPPER CAVITY COMPONENT" : LOWER CAVITY COMPONENT

RE : RING ELEMENT 2500 W

BE : BROIL ELEMENT 2000 W

UEO : UPPER ELEMENT, OUTER RING 500 WUEI : UPPER ELEMENT, INNER RING 500 W

LEO : LOWER ELEMENT, OUTER RING 600 WLEI : LOWER ELEMENT, INNER RING 1400 W

CONTROL PANEL

HBL 55

Page 61: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #29B

R BK

R

PR-L

W/RCFT"2

TSW5aSW1-5a

SW2-8a

TP'1

TP"1

W/BLW/R

WH

WH

BK

BK

WH

GN

SW1-15SW1-13

UPPER OVEN (') LOWER OVEN (")

C1

C6

C1

C1

C4

W/BLW/R

L1 L2 N

BLBL

GN

OL2'

GY

SW1-6

SW1-8

MTB1 2 1 2 STB3 4 5

WM'

SW1-17SW1-16

WHWH

1

2

3CFT'

C1C1

C1

SW1-7BR

TSW:13a

SW1:18a

OL1'

1

2

3CFT"

OL1"

OL2'

C1 BLBR

GY

LEO

'LE

I'

W/BL

W/BK

W/RR

C1

C1

C1

SW1-12

SW1-11

TSW13

SW1-14a

W/Y

UEO'UEI'

BE'

SW2-16SW2-11

SW2-1C6/4

GY

W/R

SW2-5SW2-5a

SW2-12

C6/4

C6/4

GYBR

W/RW/BLSW2-14

SW2-15BL

R

LEO

"LE

I"

BL

UEO"UEI"

BE"

RE' WM'

SW1-10

BL

BL

GN

C1

WTH

'

0L'

WH

BL

BL

W/BK

BK

C1

C1

C1

SW

1-14

C1

C1

SW

1-7a

ONL'

WH

BR

78

BRBRC

F'

C' ST2

'

ST3

'

GN

BR

WH

GN OL2"

WH

WH

BL

OL1"

BL

OL1"

W/YW/YW/RW/RWHWH

BL

OL1

'

TP'

W/Y

W/R

WHMTB5

CSW'1

123456

W/YW/YW/RW/RWHWH

1

TP"

W/Y

W/R

WHMTB5

CSW"1

123456LDL"

LDL'

LDT"14LDT"12

ONL"

C4

C2

C4C6

C2

GY

W/Y

W/R

11 3121

14 24 34

12

LDT' PTH'

ST1'

CSW'2

BR

11 3121

14 24 34

12

BL

BR

GY

GY

BL

GY

PTH"ST1" C"

BL

GY

TSW15LDL"

SW2-9MTB3

SW2-13SW2-10

LDL"TP"5

TP"4CSW2"

SW2-14aTSW-4

PR-NWHT"

SW2-1SW2-5

SW2-5aSW2-14

SW2-12SW2-11

SW2-16SW2-15

C6

LDT"14LDT"12

PTH34"

LM"CFT"3

78CF"

UEO"UEI" BE"LEO" LEI"

DR

M'

DW

M'

UM

'

23 123

123

GYR BL

C3

SW

1-18

a

SW

1-8

LDL' SW1-9

LDL'

C2

C2

PR-E

3TSW

-16

BL

GY

W/R

W/Y

W/Y

C2

BL

WH

WH

LM'1 D

RM

"

DW

M"

UM

"

231

231

23

BL

GY

W/RG

YW/R

BL

C5 W/Y

BL

PR-NLM"

OL2'

CF'

GNC6/4

WH

LDT"

C6/4

W/Y

W/R

C6

TP"5

TP"4

CSW2"

GN

BL

BL

W/BK

W/B

K

CF" ST2

"

ST3

"C"

BR

BR

78

WH

PTH

"34

BR

W/R

BR

OL2" BL

WH

OL2"

GN

W/R

W/B

L

GNR

R

R

JUMPER CONNECTEDFOR 208V ONLY

JUMPER CONNECTEDFOR 208V ONLY

BR

HBL 55

Page 62: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #30

RE

BE

UEI

LEI

LEO

UEO

BE

RE

UEI

LEI

LEO

UEO

L

UPPER OVEN

LOWER OVEN

SW1

SW1

17a

18a

19a

20a

16a

15a

14a

20

13a

11a

12a

10a

9a

8a

7a

6a

5a

3a

4a

2a

1a

16

17

18

19

20

14

15

13

11

10

9

8

6

5

4

3

2

1

7

12

16a

15a

SW2

SW2

SW

2TSW

14a13a

11a

12a

10a

9a

8a

6a

5a

7a

7

7a

3a

4a

2a

1a

16

14

15

13

11

10

9

8

6

5

4

3

2

1

7

12

20

18

19

17

20a

18a

19a

17a

BRBR

BK

BL

W/B

K

W/BK

W/R

W/B

L

W/R

20

78

20

20

20

20

2020

20

20 20

20

20

2012 14

11

20

20

20

20 20

20

20

20 20

2020

16

2020

20

20

20

20

20

20

20

20

20

20

20

20

12

11

14

2020

20

20

20

20

20

20

20

20

10 A

WG

14 A

WG

12 A

WG

12 A

WG

20

20

2020

1616

2020

2020

20

20

16

16

16 16

16

16 16

16

16

16

16

31

34

7a

2a 4a

1a

72

4

1

16

18

18

18

14

14

16

16

18

18

18

18

18

16

20

207

7a

8

8a

20

20

10a

3a

4a

13a

14a

11a

5a

12a

6a6

12

5

11

14

13

4

10

3

16

16

16

16

21 24

16

16a

16

16

18

18

N

E5

E4

F2

CV

E6 E5

L

E3

L1

F1

16

16

16

20

18

18

18

18

18

18

16

16

16

16

20

34

31

16

16

16

1616

1

1

1a

2a

4a

4

2

2a

2

1a

2020

20

20

20 20

20

20

20

20

20

20

20

20

16

20

BR

R

BR

BR

BL

W/Y

W

BK

BK

W/R

CFT(140 f)

ST2(311 f)

W/B

K

GY

W/R

GY

GY

W/BL

W/BL

W/B

L

W/BL

W/BLOL

OL

WM

PTH(890 f)

ST3(205 f)

WTH

CSW

CSW DRMGY

LDT(518 f)

LDL

UM

LM

BL

BL

TSW

CSW

TSWBL

BR

BR

DWM

ST1( 572 )

ST1( 572 )

2021 24 15

15a

TSW

BLDWM

BL

BL

BL

BL

BL

BRC

W/R

W/R

W/R

W/R

W/R

TP1 TP2

N

L2

L1

TP3 TP4 TP5 TP6W/R

MTB

STB

GN

14GN

GN

R

BR

BR

BR

W/BK

BK

W/Y

W/Y

W/Y

W

GY

ONL

R

R

R

WW

WTSW

BR

BR

CFW

SW

1 R

R

R

WWW

/R

BR

RBG

Y

TSW

W/BL

BL

BK

W/BK R

PR

CFT(140 f)

ST2(311 f)

GY

W/BL

W/BL

BL

BL

BLLM

OL

OL

W/R

W/BL

W/BK

W/R

W/R

GY

W/Y

GY

W TSW CSWCSW

LDL

C

BL

BL

BR

CSWGY

BR

W/B

LW

/R

WTH

PTH(890 f)

ST3(205 f)

W

W/R

W/RONL

W

1

2

3

78

1

23

DRM

UM

W/Y

W/R

LDT(518 f)

GY

W/RW

TP2TP1 TP4TP3 TP6TP5

W/Y

BAKEBROIL

SELF CLEAN

THAWCONV BROILCONV ROAST

OFFCONV BAKE

X X X X X X X X X X X X XX X X X X X X X XXX X X X X X X X X X XX X X X X X XX X X X X X X X X X XX X X X X X X X X X X XX X X X X X X X X

X

PO

S.

1

1a

2

2a

3

3a

4

5

5a

6

6a

7

7a

8

8a

9

9a

10

10a

11

11a

12

13

13a

14

14a

15

15a

16

16a

17

17a

18

18a

19

19a

20

20a

SW1 - SW2

LOR

X X XXXXX X X XX X

X X XXXXX

PO

S.

1

1a

2

2a

3

3a

4

4a

5

5a

6

6a

7

7a

8

8a

9

9a

10

10a

11

11a

12

12a

13

13a

14

14a

15

15a

16

16a

TSW

MANUAL

DOWN OVEN

UP OVEN

Ø

>Ø÷500 F

SELF CLEAN

XX X

POS.1

1a

2

2a

4

4a

CSW

R RED

W WHITE

BK BLACK

BR BROWN

GY GRAY

GN GREEN

BL BLUE

W/BK WHITE/BLACK

W/R WHITE/RED

W/Y WHITE/YELLOW

W/BL WHITE/BLUE

WIRE COLOR CODE

SYMBOL KEY

PR : TIMER

SW : PROGRAM SELECTOR

CSW : CLEAN SWITCH

OL : OVEN LAMP

WTH : VARIABLE THERMOSTAT

CFT : COOLING FAN THERMOSTAT

LDT : LOCKING DOOR THERMOSTAT

PTH : SELF CLEAN THERMOSTAT

ST : HIGH LIMIT

C : CATALYST

WM : CONV. FAN MOTOR

MTB : MAIN TERMINAL BLOCK

ONL : ON INDICATOR

LDL : DOOR LOCKED INDICATOR

STB : SECONDARY TERMINAL BLOCK

LM : DOOR LOCKING MOTOR

DRM : DOOR MICROSWITCH

UM : UP MICROSWITCH

DWM : DOWN MICROSWITCH

RB : RELAY BOARD

TP : TEST POINTTSW : TIMER SELECTOR

RE : RING ELEMENT 2500 W

BE : BROIL ELEMENT 2000 W

UEO : UPPER ELEMENT, OUTER RING 500 WUEI : UPPER ELEMENT, INNER RING 500 W

LEO : LOWER ELEMENT, OUTER RING 600 WLEI : LOWER ELEMENT, INNER RING 1400 W

123

123

45

6

JUMPERS CONNECTED FOR 208V ONLY

HBL 56

Page 63: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #31A

SW2 SW2

1 2 3 4 5 6 7 8 9 10

1a 2a 3a 4a 5a 6a 7a 8a 9a 10a

11 12 13 14 15 16 17 18 19 20

11a 13a1 4a 15a 16a 17a 18a 19a 20a

WH

W/B

LB

K

BR

W/B

L

GY

W/R

BR

W/B

L

WH BL

W/R

GY

BR

BL

W/R

W/Y

W/B

K

R W/R

BR

W/B

L

BR

GY

W/R

BL

W/BK

W/BL

GY

GN

ST2"

CF"

TP3"

ST3"

MTB4

PTH34"

ST2"

W/Y

GY

WHW

/R

LM"TP2"

TP6"UM"2

LDT"11ST1"24

DWM'1TP'3

DWM'2

PTH'34LDT'11

UM'2UM'3

LEO"LEI"

UEO"C"

UEI"BE"

RE"WM"

UM"3OL2"

78 "CFT"3

TSW

4a

1 2 4

1a 2a 4a

WTH"CSW"

ONL"

LDL"

ONL'

LDL'

C2

CF'

W/BL WH

GY

R

WH

E3

E6

E4

NE5

L C1W/BLMTB3

R

J1

F1 F2 L1 CV

RBPR

C3DRM'3

GY

W/Y

WH

BLBL

10 11 12 13 14 15 161 2 3 4 5 6 7

WHB

L

W/R

BR

GY

WH

TSW

-7

W/B

L

BL

R BK

W/BKBR

WH

GY

BR

BL

W/R

W/Y

W/B

K

R RW/R

W/B

L

BR

GY

WH

W/Y

R

BK

BL

W/B

K

W/B

L

BK

W/B

L

C1

ST2

'

BL

WH

BL

WHBL

CSW'2aWH

W/Y

8

10a 11a 12a 13a 14a 15a 16a1a 2a 3a 4a 5a 6a 7a 8a

TSW TSW

WH

W/BL

BL

W/R

1 2 4

1a 2a 4a

CSW' WTH'

C3DRM'2

MTB3CFT'2

CF'ST3'

CFT'3CFT'1

OL1'WM'

RE'BE'

MTB1C'

MTB2LEI'

LEO'ST2'

ST2'CF'

CFT'2MTB4

MTB3

11 12 13 14 15 16 17 18

TSW13

19 20

11a 13a 14a 15a 16a 17a 18a 19a 20a

1 2 3 4 5 6 7 8 9 10

1a 1a 3a 5a 6a 7a 8a 9a 10a

SW1 SW1

PR:L

GY

C1

W/R

C4

BL

W/R

WR

BK

SW2-18a

RDRM'1

C3

R RED

W WHITE

BK BLACK

BR BROWN

GY GRAY

GN GREEN

BL BLUE

W/BK WHITE/BLACK

W/R WHITE/RED

W/Y WHITE/YELLOW

W/BL WHITE/BLUE

WIRE COLOR CODE

PR

SW

CSW

OL

WTH

CFT

LDT

PTH

ST

C

WM

MTB

ONL

LDL

STB

LM

DRM

UM

DWM

RB

TPTSW

'"

RE 2500 W

BE 2000 W

UEO 500 WUEI 500 W

LEO 600 WLEI 1400 W

SYMBOL KEY

: TIMER

: PROGRAM SELECTOR

: CLEAN SWITCH

: OVEN LAMP

: VARIABLE THERMOSTAT

: COOLING FAN THERMOSTAT

: LOCKING DOOR THERMOSTAT

: SELF CLEAN THERMOSTAT

: HIGH LIMIT

: CATALYST

: CONV. FAN MOTOR

: MAIN TERMINAL BLOCK

: ON INDICATOR

: DOOR LOCKED INDICATOR

: SECONDARY TERMINAL BLOCK

: DOOR LOCKING MOTOR

: DOOR MICROSWITCH

: UP MICROSWITCH

: DOWN MICROSWITCH

: RELAY BOARD

: TEST POINT: TIMER SELECTOR

: UPPER CAVITY COMPONENT: LOWER CAVITY COMPONENT

: RING ELEMENT

: BROIL ELEMENT

: UPPER ELEMENT, OUTER RING: UPPER ELEMENT, INNER RING

: LOWER ELEMENT, OUTER RING: LOWER ELEMENT, INNER RING

CONTROL PANEL

HBL 56

Page 64: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #31B

R BK

R

PR-L

W/RCFT"2

TSW5aSW1-5a

SW2-5a

TP'1

TP"1

W/BLW/R

WH

WH

BK

BK

WH

GN

SW1-15SW1-13

UPPER OVEN (')

C1

C6

C1

C1

C4

W/BLW/R

L1 L2 N

BLBL

GN

OL2'

GY

SW1-6

SW1-8

MTB1 2 3 4 5

WM'

SW1-17SW1-16

WHWH

1

2

3CFT'

C1C1

C1

SW1-7BR

TSW:13a

SW1:18a

OL1'

OL2'

C1 BLBR

GY

LEO

'LE

I'

W/BL

W/BK

W/RR

C1

C1

C1

SW1-12

SW1-11

TSW13

SW1-14a

W/Y

UEO'UEI'

BE'

RE' WM'

SW1-10

BL

BL

GN

C1

WTH

'

0L'

WH

BL

BL

W/BK

BK

C1

C1

C1

SW

1-14

C1

C1

SW

1-7a

ONL'

WH

BR

78

BRBRC

F'

C' ST2

'

ST3

'

GN

WH

GN

W/YW/YW/RW/RWHWH

BL

OL1

'

TP'

W/Y

W/R

WHMTB5

CSW'1

123456

W/YW/YW/RW/RWHWH

1

TP"

W/Y

W/R

WHMTB5

CSW"1

123456LDL"

LDL'

LDT"14LDT"12

ONL"

C4

C2

C4C6

C2

GY

W/Y

W/R

11 3121

14 24 34

12

LDT' PTH'

ST1'

CSW'2

BRBL

DR

M'

DW

M'

UM

'

23 123

123

GYR BL

C3

SW

1-18

a

SW

1-8

LDL' SW1-9

LDL'

C2

C2

PR-E

3TSW

-16

BL

GY

W/R

W/Y

W/Y

C2

BL

WH

WH

LM'

OL2'

CF'

GN

R

R

R

JUMPER CONNECTEDFOR 208V ONLY

BR

LOWER OVEN (")

1 2 STB

1

2

3CFT"

OL1"

SW2-17SW2-12SW2-6

C6/4

GY

W/R

W/R

SW2-7SW2-7a

SW2-13

C6/4

C6/4

GYBR

W/RSW2-15

SW2-16BL

R

LEO

"LE

I"

UEO"UEI"

BE"

OL2"

WH

BL

GN

GN BL

BL

OL1"

BL

11 3121

14 24 34

12

BLBR

GY

GY

BL

GY

PTH"ST1"C"

GY

TSW15LDL"

SW2-8MTB3

SW2-14SW2-9

LDL"TP"5

TP"4CSW2"

SW2-14aTSW-4

PR-NWHT"

SW2-6SW2-7

SW2-7aSW2-15

SW2-13SW2-12

SW2-17SW2-16

SW2-11SW2-10

C6

LDT"14LDT"12

PTH34"

LM"

CFT"378

CF"UEO"

UEI"BE"

LEO"LEI"

RE"WM"

1

DR

M"

DW

M"

UM

"

231

231

23

BL

GY

W/RG

YW

/R BL

C5 W/Y

BL

PR-NLM"

C6/4

WH

LDT"

C6/4

W/Y

W/R

C6

TP"5

TP"4

CSW2"

GN

0

BL

BL

W/BK

W/B

K

CF" ST2

"

RE" WM"

ST3

"C"

WH

C6/4

W/BKSW2-11

W/BL

SW2-10 W/Y

0L1"

BRBR

78

WH

PTH

"34

BR

BR

OL2" BL

WH

WM"

GN

W/R

W/B

L

JUMPER CONNECTEDFOR 208V ONLY

BR

HBL 56

Page 65: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #32B

K G W

PO

WE

R S

UP

PLY

SPA

RK

MO

DU

LEIG

NIT

OR

SVA

LVE

SW

ITC

HE

S

(RR

)

(LR

)

(RF)

(LF)

(RR

)

(LR

)

(RF)

(LF)

RE

I 5S

W4

SW

3

SW

2

SW

1

GR

OU

ND

16

LIN

E 1

5

RE

IG 5

13

RE

IG 4

12

NE

UTR

AL

11

RE

IG 3

10

RE

IG 2

9

RE

IG 1

8

RE

I 4

RE

I 3

RE

I 2

RE

I 1

NH

T 71

BK G W

PO

WE

R S

UP

PLY

SPA

RK

MO

DU

LEIG

NIT

OR

SVA

LVE

SW

ITC

HE

S

(RR

)

(CR

)

(LR

)

(RF)

(LF)

(RR

)

(CR

)

(LR

)

(RF)

(LF)

RE

I 5S

W5

SW

4

SW

3

SW

2

SW

1

GR

OU

ND

16

LIN

E 1

5

RE

IG 5

13

RE

IG 4

12

NE

UTR

AL

11

RE

IG 3

10

RE

IG 2

9

RE

IG 1

8

RE

I 4

RE

I 3

RE

I 2

RE

I 1

NH

T 91

Page 66: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #33c/u 1 737 203 858

1 739 911 201

M

F

1M 1

M 1M 1

u6u8

161˚

Fe6

e5

PTC

u4

b3

1211

109

87

65

4

4

31

2

21

24

43

aa

1

bb

24

1

3

ba

aa

bb

b

5 6

1 2

a 24

1

r1

m2

m3

m1A2

s2

e0

N

L1a1

u5u3

f4

f1

h1

b2 14

0˚F

f3

b1

u2

185

˚F

f5

curr

ent p

ath

Sym

bol K

ey

curr

ent p

ath

a1M

AIN

SW

ITC

H2

e0D

OO

R S

WIT

CH

3A

2A

CTU

ATO

R (D

ispe

nser

)7

e6FL

OAT

SW

ITC

H7

e5FL

OW

SW

ITC

H11

f3TH

ER

MO

STA

T 14

0˚F

9f1

WAT

ER

LE

VE

L S

WIT

CH

5

f4TH

ER

MO

STA

T 16

1˚F

6

Sym

bol K

ey

PO

WE

R S

CR

UB

b1

& b

3

RE

GU

LAR

b1

& b

2

RIN

SE

& H

OLD

b3

f5H

IGH

LIM

IT 1

85˚F

12 curr

ent p

ath

h1O

N/O

FF L

AM

P4

m1

TIM

ER

MO

TOR

6m

2C

IRC

ULA

TIO

N M

OTO

R10

m3

DR

AIN

MO

TOR

8r1

HE

ATIN

G E

LEM

EN

T12

s2W

ATE

R S

OLE

NO

ID5

u–TI

ME

R C

ON

TAC

TS–

Sel

ecto

r Sw

itch

Con

tact

s

L

perm

anen

t spl

itca

paci

tor m

otor

(m2)

N

SH

U 3

0

Page 67: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #34c/u 1 737 203 858

1 739 911 203

e0

1M

Sel

ecto

r Sw

itch

– b

WHGN-u-4b

WH-f4

GYRD-u-6bVT-u-8b

GN-u-6aVTBK-u-2a

12

34

56

b.b.b.b.b.b.

On

/ O

ff S

witc

h –

a1D

oor S

witc

h –

e0

WHRD-l6-9

BK-l1-L1

WHRD-A2WH-l1-N

WHVT-u-4RD-l6-5

21

34

56

h1 a1

Tim

er –

u

YE

-f4R

D-A

2

BK-

m2-

1W

HG

N-b

-1V

TBK-

b-5

GY

BK-

e5-1

WH

RD

-A2

m1

BU

-l6-4

GY-

l6-1

VT-

b-3

GY

RD

-b-2

GY

RD

-l6-8

WH

-l6-3

WH

-f4G

N-l6

-6G

N-b

-4W

HV

T-a1

-31M

3b 3a 3 4b 4a 4

5b 5a 5 6b 6a 6

8b 8a 8

2b 2a 2

GY

RD

-l6-8

GY

RD

-e6-

4

BU

RD

-m2-

2B

UR

D-s

2

L1

Dra

in M

otor

– m

3

BK-

a1-4

WH

-e0-

2

GN

YE

-r1

L1 N

PE

-3

Ele

ctric

al S

uppl

y –

l1

VT-

f1-2

BU

RD

-m3

GN

YE

-r1

Wat

er S

olen

oid

– s2

RD

-e5-

4G

NY

E-1

-PE

-3G

NY

E-P

E-2

GN

YE

-s2

GN

YE

-m2

RD

-f5

Hea

ting

Ele

men

t – r1

GN

YE

-PE

-1

GN

YE

-r1

GN

YE

-m2

GN

YE

-PE

-4

Gro

und

– P

E

124

RD

-u-3

b

WH

RD

-m1

WH

RD

-e0-

1

Act

uato

r (D

ispe

nser

) – A

2

WH

RD

-e0-

1G

YR

D-u

-6b

GN

-u-6

aR

D-a

1-3

BU

-u-5

aW

H-u

-8a

GY-

u-3

BU

RD

-m2

WH

RD

-f5

GY

RD

-m3-

L1

GN

-f3R

D-e

6-1

BU

-f1-1

WH

-e5-

2

GY-

e6-2

Wiri

ng C

onne

ctor

– l6

123456789

BK-

u-2b

BU

RD

-m3

BU

RD

-l6-9

GN

YE

-PE

-1G

NY

E-r

1

Circ

ulat

ion

Mot

or –

m2

12

3

K1

YE

-u-5

b

WH

-u-8

aW

H-b

-6

Ther

mos

tat –

f4

161˚

F

WH

-e5-

2W

H-f1

-4

GN

-l6-6

WH

RD

-l6-9

RD

-r1

Ther

mos

tats

– f3

& f5

f3

140˚

F

f5

185˚

F

BU

-l6-4

WH

-f3

VT-

s2

Wat

er L

evel

Sw

itch

– f1

P

4 2

1

RD

-l6-5

GY

RD

-m3-

L1

GY-

l6-1

Floa

t Sw

itch

– e6

4 21

RD

-r1

WH

-f3W

H-l6

-3

Flow

Sw

itch

– e5

4 21

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

Hig

h Li

mit

A2

SH

U 3

0

Page 68: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #35c/u 1 737 203 858

1 739 911 202

WA

SH

STA

LLR

INS

E S

TALL

12

34

516

618

78

910

1112

1314

1517

1920

2142

2223

2425

2637

4727

2835

3229

30

3133

34

36

38

39

40

4143

44

454

64

84

95

051

5253

54

555

657

60

58

59

60606060240240240605545

UU

f4+56055f3+56060f1+55f1+53030240f1+55f1+560603030230f3+5f3/f4+51806060f1+55f1+53030606060f1+50f1+5(5)30306060f1+55f1+53030

PT

offoff

TTTTTPU

H+UH+U+KH+U+KH+UH+UH+UF+UFPP+UUF+UFPFPP+U UH+UH+UH+UH+U+RH+U+RF+UFPP+UUUUF+UFStopPP+UUUF+UFPP

PR

E-W

AS

HW

AS

H W

/ H

EAT

PR

E-R

INS

ER

INS

E W

/ H

EAT

DR

YIN

G

87654321 11 12 13 14 15 16 17 18 19

a b a ba ba ba ba ba ba b

Ther

mos

tat 1

40˚

FD

rain

Mot

or

Tim

er M

otor

161˚

F Th

erm

osta

t Byp

ass

Wat

er S

olen

oid

Ther

mos

tat 1

61˚F

Hea

ting

Ele

men

tD

rain

Mot

or

Act

uato

r

Tim

er S

top

Circ

ulat

ion

Mot

or

Reg

ular

Pow

er S

crub

Rin

se &

Hol

d

161˚

16

140˚

161˚

T I M E R C O N T A C T S P R O G R A M

TIM

E IN

SE

CO

ND

S

OP

ER

ATIO

N

TIM

ER

PO

SIT

ION

WA

SH

/RIN

SE

161˚

F/16

1˚F

140˚

F/16

1˚F

OP

ER

ATIO

N K

EY

DR

AIN

ING

P=

FILL

ING

F=

CIR

CU

LATI

ON

U=

DE

TER

GE

NT

DIS

PE

NS

ING

R=

RIN

SE

–AID

DIS

PE

NS

ING

K=

DR

YIN

GT

=H

EAT

ING

H=

SH

U 3

0

Page 69: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #361 739 911 198

11

11

1

1

1

2

M 1

X1

X2

l4

76

32

12

1

1

34

562

e0

I2.7

-1

f2-f4I2

.6-

I2.5

-I2

.9I2

.8

A1

I2.2

-I2

.4-

I2.4

-1I2

.7-2

I2.4

-2

185˚

F

A2

12

87

3

NTC

4

2

1

14

4

e3

e5F

N L1

a1

Con

trol

Mod

ule

– I2

m2

m3

e6s2

o2f1

f5 r1

I2.1

-1

I2.1

-2

I2.1

-3

depe

nden

t on

equi

pmen

t1

cont

acts

5–6

are

mom

enta

ry –

they

rese

t the

con

trol

mod

ule

& a

ctua

te th

e te

st p

rogr

am2

Sym

bol K

ey

a1O

N/O

FF S

WIT

CH

e0D

OO

R S

WIT

CH

A1

AC

TUAT

OR

(Upp

er B

aske

t)A

2A

CTU

ATO

R (D

ispe

nser

)

e6FL

OAT

SW

ITC

He5

FLO

W S

WIT

CH

e3R

EE

D S

WIT

CH

f1W

ATE

R L

EV

EL

SW

ITC

H

Sym

bol K

ey

f5H

IGH

LIM

IT 1

85˚F

m2

CIR

CU

LATI

ON

MO

TOR

m3

DR

AIN

MO

TOR

NTC

TEM

PE

RAT

UR

E S

EN

SO

Rr1

HE

ATIN

G E

LEM

EN

Ts2

WAT

ER

SO

LEN

OID

X2

SE

RV

ICE

CO

NN

EC

TOR

l4A

QU

A S

EN

SO

R

X1

JUM

PE

R

L

perm

anen

t spl

itca

paci

tor m

otor

(m2)

N

SH

I 43/

68

and

SH

U 4

3/53

/68

Page 70: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #371 739 911 220

1M

Con

trol

Mod

ule–

l2

On/

Off

Sw

itch

– a1

Doo

r Sw

itch

– e0

Floa

t sw

itch

– e6

Ele

ctric

al S

uppl

y –

l1H

eatin

g E

lem

ent –

r1Fl

ow S

witc

h –

e5D

rain

Mot

or –

m3

Gro

und

– P

E

Act

uato

r (D

ispe

nser

) – A

2

Circ

ulat

ion

Mot

or –

m2

Wat

er S

olen

oid

– s2

Wat

er L

evel

Sw

itch

– f1

NTC

– f2

& f4

/ T

herm

osta

t – f5

Wiri

ng C

onne

ctor

s –

I5 &

I6

WH-l2.1-1

WH-l2.1-3

WHRD-e5-1WH-l1-N

GYBK-l2.7-1BK-l1-L1

WH-l2.4-8WH-l6-2

21

34

56

e0

GY

RD

-e6-

4G

YR

D-l6

-9

WH

VT-

m2-

2

L1

BK-

a1-4

WH

-e0-

2

GN

YE

-r1

L1 N

PE

-3

RD

-e5-

4G

NY

E-l1

-PE

-3G

NY

E-P

E-2

GN

YE

-s2

GN

YE

-m2

RD

-f5

GN

YE

-PE

-1

GN

YE

-r1

GN

YE

-m2

GN

YE

-PE

-4124

BU

-l2.2

-1

BU

-l2.2

-2

GN

-NTC

GN

-NTC

BN

-l2.5

-7B

N-l2

.5-6

BN

-l2.5

-3B

N-l2

.5-2

BN

-l2.5

-1

WH

-l2.4

-7

l5 987654321

RD

-f5W

H-e

6-1

VT-

s2B

U-f1

-4

GY

RD

-m3-

L1

RD

-l2.7

-2W

H-a

1-6

BU

-l2.4

-4

BK-

m2-

1B

U-l2

.4-2

BU

-l2.4

-3

BU

-l2.4

-1

l6 987654321

BK-

l6-8

WH

VT-

m3

WH

VT-

e5

GN

YE

-PE

-1G

NY

E-r

1

12

3

K4

GN

-l5-1

BU-l6-6

GN

-l5-2

RD

-l6-1

RD

-r1

f2-f4 f5

185˚

F

RD

-e6-

1

BU

-l6-7

P

4 2

1

WH

-l6-2

RD

-f1-1

GY

RD

-m3-

L1

WH

-s2

4

21

RD

-r1

WH

RD

-e0-

1W

HV

T-m

2-3

4

21

1m

ay e

xist

with

out f

unct

ion

VT-

l6-6

WH

-e6-

2

GN

YE

-r1

NTC

1

11

1 1 1

x1

4

BU-l6-7

3

BU-l6-8

2

BU-l6-9

1

GYBK-a1-3

1

RD-l6-1

BK-l2.1-2

2

BN-l5-5

3

BN-l5-6

2

BN-l5-7

1

WH a1-5

3

BK-l2.7-1

2

WH-e0-1

1

WH a1-6

8

WH l6-3

7

BU-A2

2

BU-A2

12

1

BN-l5-1

7

BN-l5-2

65

46

5.5

.6.4

.2.1

.7

.5.9

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

Hig

h Li

mit

SH

I/S

HU

43

A2

Page 71: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #381 739 911 205

1M

Ree

d S

witc

h –

e3C

ontr

ol M

odul

e –

l2

On/

Off

Sw

itch

– a1

Doo

r Sw

itch

– e0

Floa

t Sw

itch

– e6 Ele

ctric

al S

uppl

y –

l1H

eatin

g E

lem

ent –

r1Fl

ow S

witc

h –

e5D

rain

Mot

or –

m3

Gro

und

– P

E

Act

uato

r (D

ispe

nser

) – A

2

Circ

ulat

ion

Mot

or–

m2

Wat

er S

olen

oid

– s2

Wat

er L

evel

Sw

itch

– f1

NTC

– f2

& f4

/ T

herm

osta

t – f5

Wiri

ng C

onne

ctor

s –

I5 &

I6

Aqu

a S

enso

r – l4

WH-l2.1-1

WH-l2.1-3

WHRD-e5-1WH-l1-N

GYBK-l2.7-1BK-l1-L1

WH-l2.4-8WH-l6-2

21

34

56

e0

GY

RD

-e6-

4G

YR

D-l6

-9

WH

VT-

m2-

2

L1B

K-a1

-4

WH

-e0-

2

GN

YE

-r1

L1 N

PE

-3

RD

-e5-

4G

NY

E-l1

-PE

-3G

NY

E-P

E-2

GN

YE

-s2

GN

YE

-m2

RD

-f5

GN

YE

-PE

-1

YE

-l2.6

-1

YE

-l2.6

-2

GN

YE

-r1

GN

YE

-m2

GN

YE

-PE

-4124

BU

-l2.2

-1

BU

-l2.2

-2

GN

-NTC

GN

-NTC

BN

-l2.5

-7B

N-l2

.5-6

BN

-l2.5

-3B

N-l2

.5-2

BN

-l2.5

-1

BN

-l4-3

BN

-l4-2

BN

-l4-1

WH

-l2.4

-7

l5 987654321

RD

-f5W

H-e

6-1

VT-

s2B

U-f1

-4

GY

RD

-m3-

L1

RD

-l2.7

-2W

H-a

1-6

BU

-l2.4

-4

BK-

m2-

1B

U-l2

.4-2

BU

-l2.4

-3

BU

-l2.4

-1

l6 987654321

BK-

l6-8

WH

VT-

m3

WH

VT-

e5

GN

YE

-PE

-1G

NY

E-r

1

12

3

K4

GN

-l5-1

BU-l6-6

GN

-l5-2

RD

-l6-1

RD

-r1

f2-f4 f5

185˚

F

RD

-e6-

1

BU

-l6-7

P

4 2

1

WH

-l6-2

RD

-f1-1

GY

RD

-m3-

L1

WH

-s2

4

21

RD

-r1

WH

RD

-e0-

1W

HV

T-m

2-3

4

21

VT-

l6-6

WH

-e6-

2

GN

YE

-r1

NTC

1

1

N S

x1

4

BU-l6-7

3

BU-l6-8

2

BU-l6-9

1

GYBK-a1-3

1

RD-l6-1

BK-l2.1-2

2

BN-l5-5

3

BN-l5-6

2

BN-l5-7

1

BN-l5-5

3

BN-l5-6

2

BN-l5-7

1

WH a1-5

3

BK-l2.7-1

2

WH-e0-1

1

WH a1-6

8

WH l6-3

7

BU-A2

2

BU-A2

1

YE-e3

2

YE-e3

1

BN-l5-1

7

BN-l5-2

65

46

5.5

.6.4

.2.1

.7

.5.9

1m

ay e

xist

with

out f

unct

ion

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

Hig

hLi

mit

SH

U 5

3

A2

Page 72: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #391 739 911 199

1M

Ree

d S

witc

h –

e3

On/

Off

Sw

itch

– a1

Doo

r Sw

itch

– e0

Floa

t Sw

itch

– e6

Ele

ctric

al S

uppl

y –

l1H

eatin

g E

lem

ent –

r1Fl

ow S

witc

h –

e5D

rain

Mot

or –

m3

Gro

und

– P

E

Act

uato

rs –

A1

& A

2

Circ

ulat

ion

Mot

or –

m2

Wat

er S

olen

oid

– s

2

Wat

er L

evel

Sw

itch

– f1

NTC

– f2

& f4

/ T

herm

osta

t – f5

Wiri

ng C

onne

ctor

s –

I5 &

I6

Aqu

a S

enso

r – l4

WH-l2.1-1

WH-l2.1-3

WHRD-e5-1WH-l1-N

GYBK-l2.7-1BK-l1-L1

WH-l2.4-8WH-l6-2

21

34

56

e0

GY

RD

-e6-

4G

YR

D-l6

-9

WH

VT-

m2-

2

L1B

K-a1

-4

WH

-e0-

2

GN

YE

-r1

L1 N

PE

-3

RD

-e5-

4G

NY

E-l1

-PE

-3G

NY

E-P

E-2

GN

YE

-s2

GN

YE

-m2

RD

-f5

GN

YE

-PE

-1

YE

-l2.6

-1

YE

-l2.6

-2

GN

YE

-r1

GN

YE

-m2

GN

YE

-PE

-4124

BU

-l2.2

-1

BU

-l2.2

-2A

2

RD

-e6-

1W

H-l6

-2

GY-

l6-3

A1

GN

-NTC

GN

-NTC

BN

-l2.5

-7B

N-l2

.5-6

BN

-l2.5

-3B

N-l2

.5-2

BN

-l2.5

-1

BN

-l4-3

BN

-l4-2

BN

-l4-1

WH

-l2.4

-7

l5 987654321

RD

-f5W

H-A

1G

Y-A

1

VT-

s2B

U-f1

-4

GY

RD

-m3-

L1

RD

-l2.7

-2W

H-a

1-6

BU

-l2.4

-4

BK-

m2-

1B

U-l2

.4-2

BU

-l2.4

-3

BU

-l2.4

-1

l6 987654321

BK-

l6-8

WH

VT-

m3

WH

VT-

e5

GN

YE

-PE

-1G

NY

E-r

1

12

3

K4

GN

-l5-1

BU-l6-6

GN

-l5-2

RD

-l6-1

RD

-r1

f2-f4 f5

185˚

F

RD

-e6-

1

BU

-l6-7

P

4 2

1

RD

-A1

RD

-f1-1

GY

RD

-m3-

L1

WH

-s2

4

21

RD

-r1

WH

RD

-e0-

1W

HV

T-m

2-3

4

21

dete

rgen

t dis

pens

er

uppe

r bas

ket w

ash

VT-

l6-6

WH

-e6-

2

GN

YE

-r1

NTC

N S4

BU-l6-7

3

BU-l6-8

2

BU-l6-9

1

GYBK-a1-3

1

RD-l6-1

BK-l2.1-2

2

BN-l5-5

3

BN-l5-6

2

BN-l5-7

1

BN-l5-5

3

BN-l5-6

2

BN-l5-7

1

WH a1-5

3

BK-l2.7-1

2

WH-e0-1

1

WH a1-6

8

WH l6-3

7

BU-A2

2

BU-A2

1

YE-e3

2

YE-e3

1

BN-l5-1

7

BN-l5-2

65

46

5.5

.6.4

.2.1

.7

.5.9

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

Con

trol

Mod

ule

– l2

Hig

hLi

mit

SH

I/S

HU

68

Page 73: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #401 739 911 152

SHI/U 43-- MODELS

To begin the test program, press both the POWER SCRUB PLUS and REGULAR WASH buttons at the same time as youturn the unit on by pressing the ON/OFF button. When the buttons are released, the LED’s above them will begin flashing.To end the test program or test cycle, press the ON/OFF button.

To check the LED indicator lamps (WASH, RINSE/DRY and CLEAN status lights and the SCRUB WASH program light),press the SCRUB WASH button.

To start the test cycle, press both the POWER SCRUB PLUS and REGULAR WASH buttons a second time. When the testcycle has completed and a fault was detected, the following indicator LED’s will be illuminated.

WASH = Heating faultRINSE/DRY = Filling faultCLEAN = NTC (temperature sensor) fault

SHU 53-- or SHI/U 68-- MODELS

To begin the test program, press both the SCRUB WASH and DELICATE/ECONO wash program buttons at the same timeas you turn the unit on by pressing the ON/OFF button. Initially, the control unit version number will appear in the display(e.g./ 20 = version 20, 21 = version 21, etc.). When the wash program buttons are released, the LED’s above them willbegin flashing. To end the test program or test cycle, press the ON/OFF button.

To check the wash program LED, press its corresponding button. To check the Cycle Countdown display, Refill Rinse AgentLED and REGULAR WASH button LED, press the REGULAR WASH button (press the DELAY START button to test theCycle Countdown display alone). The Cycle Countdown display should show “88” when the DELAY START button ispressed and “8h” when the REGULAR WASH button is pressed.

To start the test cycle, press both the SCRUB WASH and DELICATE/ECONO buttons a second time. When the test cyclehas completed, the Cycle Countdown display will indicate a fault using the codes below. If a combination of faults exists,the code numbers will be added together, (e.g./ 6 = faults 2 + 4).

0 = No faults1 = Aqua Sensor (“Sensotronic”) fault2 = Heating fault4 = Filling fault8 = NTC (temperature sensor) fault

If the refill rinse agent sensor (reed switch e3) has failed (open circuited), the display will show “0” throughout the testcycle. If the water level switch (f1) has failed (open circuited), the display will show fault code “4” and the unit willcontinually fill and drain where the test cycle won’t be completed. If the flow switch (e5) has failed (open circuited), thedisplay will show “0” throughout the test cycle, the water will not heat (to 150°F) and the unit won’t stop circulating. If theNTC probe (f2/f4) has failed (open circuited), the display will show fault code “8” immediately and the test cycle will endshortly after the unit has started circulating.

• To bypass a function: SHI/U 43-- models Press the SCRUB WASH buttonSHI/U 53--/68-- models Press the REGULAR WASH button.

FUNCTION* DURATION COMMENTS

Draining 30 seconds

Aqua Sensor 65 seconds Not used on SHI/U 43--(“Sensotronic”) Calibration

Filling Until Water Level Switch (f1) closes This function can’t be bypassed

Heating & Circulating Until water temperature reaches 150°F (65°C) Dispenser Actuator energizes

Draining 60 seconds

SHI/U 43--, 53-- or 68-- DISHWASHER DIAGNOSTIC TEST PROGRAM

Page 74: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #41

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Page 75: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #42

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Page 76: Bosch Dishwasher SHU Complete Troubleshooting Guide

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Page 77: Bosch Dishwasher SHU Complete Troubleshooting Guide

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Page 78: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #45

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Page 79: Bosch Dishwasher SHU Complete Troubleshooting Guide

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pera

ting

Mod

ule

21N

3P

ower

Sw

itch

6-19

Q4

On/

Off

Sw

itch

4R

2N

TC T

empe

ratu

re S

enso

r11

R3

NTC

Tem

pera

ture

Sen

sor

13S

2S

elec

tor S

witc

h21

S8

Slid

ing

Con

tact

– M

oist

ure

Sen

sor

19S

9D

oor S

witc

h6

List

of C

ompo

nent

sC

urre

nt P

ath

S10

Slid

ing

Gro

und

Con

tact

17V

2E

lect

rode

– M

oist

ure

(In D

rum

)18

X2

Mot

or C

onne

ctor

Plu

g13

-16

X6

Con

nect

ion

Str

ip H

eate

r7-

11X

11P

lug

in C

onne

ctio

n M

odul

e6-

22X

18C

onne

ctor

16X

20C

onne

ctor

20X

22P

ower

Con

nect

ion

Box

2

Plu

g in

Con

nect

ion

Mod

ule

To W

FK 2

401

Out

let

WTA

35

00/

WTL

54

00

DIAGRAM #46518 5008 AA6

Page 80: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #47

M

M 1

21

21

43

64

5

13

2

12

12

21

23

1

21

21

21

12

32

31

23

1

2

PE

13

21

3

23

12

31

23

1

B10

S10

S8

X20

Moi

stur

e S

enso

rs

V2

X18

R3

NTC

Tem

pera

ture

Sen

sor

**9k

… 1

1k

(Bea

ring

shie

ld)

** 18k …

22k

**

Leve

l Sw

itch

PE

Q4

O

n/O

ff S

witc

h

15A

X22

Pow

er C

onne

ctio

n B

ox

To W

FK 2

401

Out

let

15A

12 12

1234567

12

12

34

56

78

23

14

56

12

12

12

12

12

12

12

2

12

12345

123

L1 L2*

P

E2

700W

=71

76

E2

1300

W=

37

…42

E

318

00W

=27

31

X2.

2 - 3

19 …

25

25 …

29

X2.

2 - 4

18 …

23

25 …

30

E3

X6

Con

nect

ion

Str

ipH

eate

r

Hea

ter

open

s at

120

º C

(con

dens

. dry

ing)

open

s at

100

º C

(air

dryi

ng)

R2

NTC

B9

Sid

e B

ag

Pum

p M

otor

Con

dens

ate

Wat

er

C1

Cap

acito

r

M4

110

… 1

36

Mot

or C

onne

ctor

Plu

g

Con

dens

atio

ndr

ying

Air

dryi

ng

X2

Mot

or O

verlo

adF7

Dru

m M

otor

M8

Ove

rhea

tTh

erm

osta

t

E2

H8

S9

X11

-1(X

11-3

) X11

-2X

11-5

X11

-14

1 10987654321 1098765432

110 9 8 7 6 5 4 3 2110 9 8 7 6 5 4 3 2

X11

-12

X11

-10

N3

Pow

er M

odul

e

N1

Ope

ratin

g M

odul

e

PE

:S

ide

Wal

lFr

ont W

all

Trav

erse

Mai

n G

roun

d

F12

12

1

23

1

1 2 3

43

21

65

71

23

45

6

12

Illum

inat

ion

Doo

r Sw

itch

For W

TL 5

400

con

dens

atio

n dr

yers

not o

n m

odel

s w

ithou

t dru

m il

lum

inat

ion

not o

n m

odel

s w

ithou

t dru

m il

lum

inat

ion

Con

dens

ated

Wat

er

WTA

35

00/

WTL

54

00

518 5018 AA5

Page 81: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #48

11

1M 1

X2

21

21

1

1

34

4

562

2

f2-f4

I2.7

-

I2.3

-

I2.8

-I2

.6

A1

I2.1

-I2

.4-3

I2.4

-1I2

.5-1

185˚

F

A2

13

12

NTC

2

22

4 1

1

4

e3

e5F

N L1

a1

e0

m2

Con

trol

Mod

ule

– I2

m3

e6s2

f1

f5 r1

I2.2

-3I2

.4-2

I2.2

-2

I2.5

-2

SH

V 4

803

onl

y1

Sym

bol K

ey

a1O

N/O

FF S

WIT

CH

e0D

OO

R S

WIT

CH

A1

AC

TUAT

OR

(Upp

er B

aske

t)A

2A

CTU

ATO

R (D

ispe

nser

)

e6FL

OAT

SW

ITC

He5

FLO

W S

WIT

CH

e3R

EE

D S

WIT

CH

f1W

ATE

R L

EV

EL

SW

ITC

H

Sym

bol K

ey

f5H

IGH

LIM

IT 1

85˚F

m2

CIR

CU

LATI

ON

MO

TOR

m3

DR

AIN

MO

TOR

NTC

TEM

PE

RAT

UR

E S

EN

SO

Rr1

HE

ATIN

G E

LEM

EN

Ts2

WAT

ER

SO

LEN

OID

X2

SE

RV

ICE

CO

NN

EC

TOR

L

perm

anen

t spl

itca

paci

tor m

otor

(m2)

N

SH

U 9

9, S

HV

43/

48

5600011178

Page 82: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #49

1M

VT-

m2-

3

Ree

d S

witc

h –

e3C

ontr

ol M

odul

e –

I2O

n/O

ff S

witc

h –

a1

Floa

t Sw

itch

– e6

Ele

ctric

al S

uppl

y –

l1H

eatin

g E

lem

ent –

r1Fl

ow S

witc

h –

e5D

rain

Mot

or –

m3

Gro

und

– P

E

Circ

ulat

ion

Mot

or–

m2

Wat

er S

olen

oid

– s2

Wat

er L

evel

Sw

itch

– f1

NTC

– f2

& f4

/ T

herm

osta

t – f5

Wiri

ng C

onne

ctor

– I6

WHRD-e0-1WHRD-e5-1

WH-l1-NGYBK-l2.5-2

BK-l1-L12

13

45

6

GY

RD

-e6-

4G

YR

D-l6

-7

WH

VT-

e5-1

L1B

K-a1

-4

WH

-a1-

2

GN

YE

-r1

L1 N

PE

-3

RD

-e5-

4G

NY

E-l1

-PE

-3G

NY

E-P

E-2

GN

YE

-s2

GN

YE

-m2

RD

-f5

GN

YE

-PE

-1

YE

-l2.7

-2

YE

-l2.7

-1

GN

YE

-r1

GN

YE

-m2

GN

YE

-PE

-4124

BU

-l2.3

-1

BU

-l2.3

-2B

N-l2

.8-1

WH

-l2.1

-3W

H-l2

.1-2

RD

-f5G

N-N

TCG

N-N

TCB

U-f1

-4V

T-s2

GY-

A1

GY

RD

-m3

WH

-A1

RD

-l2.5

-1B

N-l2

.8-2

WH

-l2.1

-1

BK-

m2-

1W

H-l2

.4-2

WH

-l2.4

-3

WH

-l2.4

-1

l6 987654321

BK-

l6-8

VT-

e0-2

GN

YE

-PE

-1G

NY

E-r

1

12

3

K4

GN

-l6-3

WHRD-e0-1

GN

-l6-2

RD

-l6-1

Hig

hLi

mit

f2-f4 f5

185˚

F

RD

-e6-

1

BU

-l6-4

P

4 2

1

Doo

r Sw

itch

– e0

WH

RD

-l2.2

-2W

HR

D-a

1-1

GY-

l2.2

-34 2

1

RD

-A1

RD

-f1-1

GY

RD

-m3-

l1

WH

-s2

4

21

RD

-r1

WH

RD

-a1-

1W

HV

T-m

3

4

21

VT-

l6-5

WH

-e6-

2

GN

YE

-r1

NTC

1

1

N S

2

GY-e0-4

3

GYBK-a1-3

2

RD-l6-1

1

WH-I6-9

1

WH-I6-8

2

WH-I6-7

3

WH-I6-6

1

WH-I6-5

2

WH-I6-4

3

BU-A2

1

BU-A2

2

YE-e3

1

YE-e3

2

BN-l6-3

1

BN-l6-2

23

41

.8.7

.4.2

.3.1

I2.

.5

.6

1S

HV

48

03 o

nly

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

1

1

Act

uato

rs –

A1

& A

2

RD

-e6-

1W

H-l6

-9

GY-

l6-6

A1

A2

uppe

r bas

ket w

ash

dete

rgen

t dis

pens

er

SH

U 9

9, S

HV

43/

48

5600011181

Page 83: Bosch Dishwasher SHU Complete Troubleshooting Guide

PR23

SW1

20

W/BL

W/BK 20

20

DWM21ST120

24

BR20 BR 20

W/BL

W/RONL

(White)

BL

20 GY

I

PR12

PR11

PR24

F1

BPI BPU

FP

FF

VR

PRF

PRP

U

VRF 11a

W 20

2a

3a

4a

5a

6a

7a

8a

20

20

W/B

L

W/R

16 W

/R

20

20

20

20

20

20

16

16

16 16

12V

120V

20

BK

20

R

20

2 16

3

4

5

6 16

7

8

PR21

CR

SW2

W/BL

W/BKPR3

RSE

RSI

C

RGB

RGA

RGD

RGC

L99a

10a

11a

12a

13a

14a

16a

10

11

12

13

14

15

16

PRE3E6

R L

L1

RB

BR 20

16 R 16

F1

E4

N

E5

F2

CV

MSW

1

16

1a

16

4a 4

BL

16

2

C OL OL TR

20

16

BE EUE IUE

BL 16

IDE

34PTH

31

18

18

GY

BR

R 16

18

18

W/BL

W/R

BL20

18

EDE

BR

ST3

BL 1620

16

16W/BK CSW

W/BL WTH

ST2THL(red)

16

LDL(white)

LM

TP4TP3TP2TP1 TP5 TP6

W/Y

W/R

20

W CF

GY

78Ω

1

2

14GN5 White 20

4 Black 16

3

2

1 TB

18

18

L116 AWG

Connected for 208VNot connected for 240V

16 AWG

16 AWG

14 AWG

L2

N

Red 16

320

SW1

CFT5a

5

BR

BR 20

20

W/R

W/BL

20

11

20

GY

W/Y

UMW/R

20

LDT

14

DRM

12

1a

1

CSW

W/Y 20

CSW2aW

W

16

BL

M

M

16

16a—

1514

14a

13121110987654321

0OFF

1

2

3

BAKE

BROIL

SELF CLEAN

X

XX

X XXX

X

X

XX

XXX

X

XX X X X X

X

X X XX

1a

1POS.

MSW

SW1

16CH/127

SW2

2CH/426

WIRE COLOR CODE

MANUALTIMER

1a

2a 3a 4a

X XX

1POS.

CSW

4CH/259

O (OFF)

SELF CLEAN>0÷500ºF

1a

2

2a

4

4a

5a 6a 7a 8a 9a 10a -11a 12a 13a

W

BK

BL

BRGY

R Red

NOTE: THE NUMBERS 14-16-18-20 INDICATETHE WIRE SIZE (AWG)

22 GN

White/Blue

Green

BE : Broil element, 1750W, 1750WC : Catalyst

CF : Cooling fanCFT : Cooling fan thermostat

CSW : Clean switchDRM : Door microswitch

DWM : Down microswitchEDE : External down element, 400W, 600WEUE : External up element, 1400W, 1400W IDE : Internal down element, 1200W, 1400WIUE : Internal up element, 348W(111V), 348W(111V)LDL : Locking door warning lightLDT : Locking door thermostatLM : Locking motor

MSW : Manual switchOL : Oven lamp, 12V-20W

ONL : On/Off warning lightPR : Programmer

PTH : Pyrolytic thermostatRB : Relay boardST : Safety thermostat, 68000, 77000

SW : Switch-commutatorTB : Terminal block

THL : Thermostat warning lightTP : Test pointTR : Transformer, 120V-12V, 40W

UM : Up microswitchWTH : Working thermostat

55

69

0929

49

White/Black

White/Red

White/Yellow

W/BL

W/BKW/R

W/Y

99

00

66

11

90

White

Black

Blue

Brown

GrayP

R3-

RS

E

PR

3-R

SI

PR

3-C

PR

3-R

GB

PR

3-R

GA

CR

-RG

D

CR

-RG

C

PR

21-L

BP

I-BP

U

F1-F

P

PR

24-V

R

FI-F

F

PR

11-P

RF

PR

12-P

RP

I-UPR

23-V

RF

P

OS

.

HBL 63

DIAGRAM #50

Page 84: Bosch Dishwasher SHU Complete Troubleshooting Guide

SW1W/BL

W/BK 20

PR12

PR11

PR24

PR21

PR23

F1

BPI BPU

L

VR

VRF

FF

FV

FP

PRP

PRF11a

2a

3a

5a

6a 6 GY

7a

2

W

W

16

16

16

3

4

5 W/BL

W/BL

W/BK

W/R

W/R

ONL(White)

18

W/R

R

BR

BR

BL

BL

GY

W/Y

W/R

7

88a

PR22

CR

I

SW2

PR3 RV

RSI

RSE

U

C

RGB

RGA

RGD

RGC

MV

9a 9

11a

12a

13a

15a

16a

18a

19a

20a

10

20

16

20

11

12 14

LDTW/Y

20

UM W/YBL 20

LM

LDL(white)

DRM

W/R

20W/R

TP4 TP6 W/BL

W/BK W/BK

16

ST2

16

16TP5TP3TP2TP1

R16

10a

11

12

13

14

15

16

16

32

39Ω

WTH3

31BR

W/M

20

17

18

18

18

C

18

16

34PTH31

12 14

16BLTHL

(red) CSW

WTH1

4a ST311 4

16

18

20

ERP1

P2 2

WTH2

21

22

18

19 W/R

20

R

20

PRE3E6

L

L1

RB

BR 20

F1

E4

N

E5

F2

CV

1aW/Y 20

20

12V

120V

R

MSW1

16

OL OLTR

BE

16

BL 16

RE EUE IUE IDE EDE

3 2

1

78Ω

GY

CF

20

SW1

CFT7a

7BRBR 20

20

1a

1

CSW

M

M

M

14GN5 White 20

4 Black 16

3

2

1TB

Connected for 208 VNot connected for 240V

18

18

L116 AWG

16 AWG

16 AWG

14 AWG

L2

N

Red 16

DWM21ST120

20

20

20BR

20

20

BL

20BL

20

W/B

L

BK

20

W/R

20

20

1818

RW

/BK

20 20

20

20

16

2020

20

20BR

GY

W/BL

W/R

W

W/R

GY

24

2

CSW

2a

18

X

1POS.

MSW2CH/426

WIRE COLOR CODE.

MANUALTIMER

1a

X XX

1POS.

CSW

4CH/259

O (OFF)

SELF CLEAN> 0÷500ºF

1a

2

2a

4

4a

W

BK

BL

BR

GY

R Red

NOTE: THE NUMBERS 14-16-18-20 INDICATE THEWIRE SIZE (AWG)

22 GN

White/Blue

Green 55

69

0929

49

White/Black

White/Red

White/Yellow

W/BL

W/BKW/R

W/Y

99

00

66

11

90

White

Black

Blue

BrownGray

2019181716151413121110987654321

0OFF

1CONV. ROAST

2CONV. BAKE

3CONV. BROIL

THAW 4

5BAKE

BROIL 6

7 SELF CLEAN

X

X X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X XXX

X

X

X

X

XX

X

X

X

X

X

X

X

X

X

X

X

X

X XX

1a SW2SW1

20CH/17MZ

2a 3a — ——5a 6a 7a 8a 9a 10a 11a 12a 13a 15a 16a 19a18a 20a

I-UPR

3-R

SE

PR

3-R

SI

PR

3-R

V

PR

3-C

PR

3-R

GB

PR

3-R

GD

CR

-RG

D

CR

-RG

C

PR

22-M

V

BP

I-BP

U

PR

21-L

PR

24-V

R

PR

23-V

RF

FI-F

F

FI-F

V

FI-F

P

PR

12-P

RP

PR

11-P

RF

P

OS

.

BE : Broil element, 1750W, 1750WC : Catalyst

CF : Cooling fanCFT : Cooling fan thermostat

CSW : Clean switchDRM : Door microswitch

DWM : Down microswitchEDE : External down element, 400W, 600W

ER : Energy regulatorEUE : External up element, 1400W, 1400W IDE : Internal down element, 1200W, 1400WIUE : Internal up element, 348W(111V), 348W(111V)LDL : Locking door warning lightLDT : Locking door thermostatLM : Locking motorOL : Oven lamp 12V-20W

ONL : On/Off warning lightPR : Programmer

PTH : Pyrolytic thermostatRB : Relay boardRE : Ring element, 2500W, 2500WST : Safety thermostat, 68000, 77000

SW : Switch-commutatorTB : Terminal block

THL : Thermostat warning lightTP : Test pointTR : Transformer 40W, 120V-12V

UM : Up microswitchWM : Working motor

WTH : Working thermostat

HBL/HBN 64

DIAGRAM #51

Page 85: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #52

PR11

SW1

SW1

R 20

16 BK

20 BL

W/R 20

WM

PTH31

BL

ST3

20 W

W/Y

34

THL(Red)

(Optional)

R 20

WTH3

TSW CSW

BR

BR

20

20

TP1 TP2 TP3 TP5TP4 TP6

W/Y

20 W/R

20 W/R

W 16

W/BL

W/R

18

18

18

18

18 W/BK

BR

GY

GY 20

ONL(White)

18

18

R

20

BR39Ω

PR12

F1

PR23

PR24

PR21

BPI

PR22 MV

BPU

L

VR

VRF

FF

FV

FP

PRP

PRF 11a

31

120V12V

2a

3a

5a

20BR

6a

7a

8a

18

R

20 TR

20

R

20

GY

16W

/BK

16B

K

W/R

20

16

20

16

BL

20

20

BL

20 20

R

20W

/R

20R

1616

16

16

BL

20

20

GY

9a

10a

2

3

4

GY

W/BL 16

OL

OL

32

20W/Y

7a 7 16

W

C

16

W

1a1

2a 2

20BR

BL 20

20

5

6

7

8

9

10

CR

PR3

UI

RSE

RSI

RV

C

RGB

RGA

RGD

RGC 1111a

12a

13a

15a

16a

18a

19a

20a

12

13

14

15

16

17

18

19

208

8a

TSW

ST2

M

BE

EUE

IUE

IDE

EDE

RE

BL

11LDT

12

LDL(White)

ER WTH 2W/R

20

20

P118W/R

R 20

P2

R 1821

22

18

14

11

12

2

LM

DRM20 GY

BL

4 CSW

4a UM

20

14

M

WTH1

20R

6a

16

16

16

R

16 BK

16 BK

20 W

BL 20

TSW

W/BL

RB

PRN

E5

E4

CV

F2F1

L1

E3

L

20

W/BK 16

12a

5a

11a

14a

13a

4a

3a

10a

6

12

5

11

14

13

4

3

10

DWM

ST1

TSW

W/BL 18

W/R 18

CSW

MTB

GN 14

GN 14

GN 14

STB

BK

BK

10 A

WG

14 A

WG

12 A

WG

12 A

WG

CO

NN

EC

TED

FO

R 2

08V

NO

T C

ON

NE

CTE

D F

OR

24

0V

20

20

20

20

BL

20

16

16 W

/R 20 W

20

BK

20

20 G

Y R 1

6

W

20

N

L116

16L2

BL 16 16a2024

21

BK

16 W/BL

DWM

BL2024

21 ST1 TSW15

15a

6

5

4

3

1

2

1

3

2

GY

20

W/R

BR

16

20

2020

20

TR

16

16B

L

16

16

W/R

20

W/B

K

16

GY

20

20W

/R

PR11

SW2

PR12

F1

PR23

I

PR24

BPI

W/BK

ST2

PR21 L

BPU

FP

FF

VR

PRF

PRP

VRF11a

BR 20

20 20 BR

BR CFT

CF

20

20

78Ω7a

7

2a

2

BL

TSW

2a

3a

4a

5a

6a

7a

8a

9a

10a

2

3

4

5

6

7

8

9

10

CR

PR3

U

RSE

RSI

C

RGB

RGA

RGD

RGC11a 11

13a

16 14a

16a

SW2

12

13

14

15

16

W/BL 18

20

W/R 18

W

ONL(White)

W/R

W/R

20

20

20

16

1616

120V12V

1a

TSW

W

16

18

16

W/BL

W/R

R

GY

BR

BL

GY

W/R

20

18

TLH(Red) W/R 20

1a 1

CSW

18

2a

CSW

WTH

CSW

4

4A

4

31

16

W/R 204a

BL

BL

ST3PTH

34

BRC

20

20

W/R

TP2TP1 TP3 TP4 TP5 TP6

12

W

LDT

GY

BL

DRM

LDL(White)

W/Y

BL20 UM

20

14

11

W/YLM

21

W/BL

W 16

OL

BR 20

MM

SW

2

20

OL

BE

EUE

IUE

IDE

EDE

(Optional)

7BR

20

CFT

BR

78Ω20

7a

20 W

CF

R 16

SW

1

M

BE : Broil element, 1750W, 1750WC : Catalyst

CF : Cooling fanCFT : Cooling fan thermostat

CSW : Clean switch DRM : Door microswitchDWM : Down microswitchEDE : External down element, 400W, 600W

ER : Energy regulatorEUE : External up element, 1400W, 1400W IDE : Internal down element, 1200W, 1400WIUE : Internal up element, 348W(111V), 348W(111V)LDL : Locking door warning lightLDT : Locking door thermostatLM : Locking motor

MTB : Main terminal blockONL : On/Off warning light

OL : Oven lamp, 12V—20WPTH : Pyrolytic thermostat

PR : ProgrammerRB : Relay boardRE : Ring element, 2500W, 2500WST : Safety thermostat, 68000, 77000

STB : Service terminal blockSW : Switch-commutatorTP : Test point

THL : Thermostat warning lightTSW : Timer switch commutator

TR : Transformer, 120V—12V, 40WUM : Up microswitch

WM : Working motorWTH : Working thermostat

2019181716151413121110987654321

0OFF

1CONV. ROAST

2CONV. BAKE

3CONV. BROIL

THAW 4

5BAKE

BROIL 6

7 SELF CLEAN

X X X XX X X

X X XX X

X X X X X XX

X XX

X

X X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X XXX

X

X

X

X

XX

X

X

X

X

X

X

X

X

X

X

X

X

X XX

1a

1POS.CSW

16CH/112

TSW

L

OR

SW2SW1

4CH/259O (OFF)

SELF CLEAN> 0÷500ºF

1a

2a

22a

3a

44a

5a 6a 7a 8a 9a 10a 11a 12a 13a 15a 16a 161514

14a

13121110987654321

1a 2a 3a 4a 5a 6a 7a 8a 9a 10a 11a 12a 13a 15a 16a

19a18a 20a

DOWN OVEN

MANUAL

UP OVEN

I-UPR

E-R

SE

PR

3-R

SI

PR

3-R

V

PR

3-C

PR

3-R

GB

PR

3-R

GA

CR

-RG

D

CR

-RG

C

PR

22-M

V

BP

I-BP

U

PR

21-L

PR

24-V

R

PR

23-V

RF

FI-F

F

FI-F

V

FI-F

P

PR

12-P

RP

PR

11-P

RF

P

OS

.

PO

S.

WIRE COLOR CODE

W

BK

BL

BRGY

R Red

NOTE: THE NUMBERS 14-16-18-20 INDICATE THE WIRE SIZE

22 GN

White/Blue

Green 55

69

0929

49

White/Black

White/Red

White/Yellow

W/BL

W/BKW/R

W/Y

99

00

66

11

90

White

Black

Blue

Brown

Gray

1615

14a

1413121110987654321

0OFF

1

2

3

BAKE

BROIL

SELF CLEAN

XX

X XXX

X

X

X

XXX

X

XX X X X X

X

X X XX

1aSW2

16CH/127

2a 3a 4a 5a 6a 7a 8a 9a 10a 11a 12a 13a 16a

PR

3-R

SE

PR

3-R

SI

PR

3-C

PR

3-R

GB

PR

3-R

GA

CR

-RG

D

CR

-RG

C

PR

21-L

BP

I-BP

U

F1-F

P

PR

24-V

R

FI-F

F

PR

11-P

RF

PR

12-P

RP

I-UPR

23-V

RF

P

OS

.

UPPER OVEN

LOWER OVEN

HBL/HBN 65

Page 86: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #53

PR11

SW1

R16

16 BK

BL

ST2

W/R 20

WM

PTH31

BL

34

W/Y

20 W

W/Y

BL

DRMGY 20

1112

THL(Red)

LDL(White)

LDT

BL

R 20

R 20

2019181716151413121110987654321

0OFF

1CONV. ROAST

2CONV. BAKE

3CONV. BROIL

THAW 4

5BAKE

BROIL 6

7 SELF CLEAN

X X X XX X X

X X XX X

X X X X X XX

X XX

X

X X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X XXX

X

X

X

X

XX

X

X

X

X

X

X

X

X

X

X

X

X

X XX

1a

1POS.

CSW

16CH/112

TSW

L

OR

SW2SW1

4CH/259

WIRE COLOR CODE

O (OFF)

SELF CLEAN> 0÷500ºF

1a

2a

2

2a

3a

4

4a

5a 6a 7a 8a 9a 10a 11a 12a 13a 15a 16a161514

14a

13121110987654321

1a 2a 3a 4a 5a 6a 7a 8a 9a 10a 11a 12a 13a 15a 16a19a18a 20a

W

BK

BL

BRGY

R Red

NOTE: THE NUMBERS 14-16-18-20 INDICATE THE WIRE SIZE

22 GN

White/Blue

Green

DOWN OVEN

MANUAL

UP OVEN

BE : Broil element, 1750W, 1750WC : Catalyst, 150W

CF : Cooling fanCFT : Cooling fan thermostat

CSW : Clean switchDRM : Door microswitch

DWM : Down microswitchEDE : External down element, 400W, 600W

ER : Energy regulatorEUE : External up element, 1400W, 1400W IDE : Internal down element, 1200W, 1400WIUE : Internal up element, 348W(111V), 348W(111V)LDL : Locking door warning lightLDT : Locking door thermostatLM : Locking motor

MTB : Main terminal blockOL : Oven lamp 12V-20W

ONL : On/Off warning lightPR : Programmer

PTH : Pyrolytic thermostatRB : Relay boardRE : Ring element, 2500W, 2500WST : Safety thermostat, 68000, 77000

STB : Service terminal blockSW : Switch-commutatorTHL : Thermostat warning light

TP : Test pointTSW : Timer switch commutator

TR : Transformer 120V-12V, 40WUM : Up microswitch

WM : Working motorWTH : Working thermostat

55

69

0929

49

White/Black

White/Red

White/Yellow

W/BL

W/BKW/R

W/Y

99

00

66

11

90

White

Black

Blue

Brown

Gray

WTH3

TSW CSW

BR

BR

GY 20

W/R

ONL(White)

SW1

DWM

ST1

TSW

W/BL 18

W/R 18

CSW20 W/R

20 W/R

20 W

TP1

MTB

GN 14

GN 14

GN 14

STB

BK

BR

TP2 TP3 TP4 TP5 TP6

W 18

W/BL

W/R

18

18

18

18

18 W/BK

BR

GY18

18

R

20BR

39Ω

PR12

F1

PR23

PR24

PR21

BPI

PR22 MV

BPU

L

VR

VRF

FF

FV

FP

PRP

PRF

W/R 18

ER WTH2W/BK

11a

BL

31

120V12V

2a

3a

5a

20

20

BR

6a

7a

8a

18

20

20

I-UPR

E-R

SE

PR

3-R

SI

PR

3-R

V

PR

3-C

PR

3-R

GB

PR

3-R

GA

CR

-RG

D

CR

-RG

C

PR

22-M

V

BP

I-BP

U

PR

21-L

PR

24-V

R

PR

23-V

RF

FI-F

F

FI-F

V

FI-F

P

PR

12-P

RP

PR

11-P

RF

PO

S.

PO

S.

TR

20

R

20

GY

16 R

W/B

K16

BK

20

16

BL

4aB

L16

20

20

R

20W

/R

20 20

10 A

WG

14 A

WG

12 A

WG

12 A

WG

CO

NN

EC

TED

FO

R 2

08V

NO

T C

ON

NE

CTE

D F

OR

24

0V

20

20

20R

1616

16

16

20

GY

20

W/R

BR

16

16 B

L

18

18

GY

20

2020

20

TR

16

16

W/R

20

CS

W

20

16 W

/R

20 W

20B

K2020

GY

20

R 1

6

R

20 W

/BL

20

GY

20

BL

20

20 B

L

W/B

L 1

6

16

GY

20

9a

10a

2

3

4

GY

W/BL 16

P1

P2

R 1821

22

18

1814

11

122

OL

OL

32

20W/Y

7a 7 16

W

C

16

LMUM

20

20 W

11a

N

L1

16

16

L2

BL 16 16a2024

21

20 BK

16 W/BL

2a 2

1420BR 20

5

6

7

8

9

10

CR

PR3

U

R

I

RSE

RSI

RV

C

RGB

RGA

RGD

RGC 1111a

12a

13a

15a

16a

18a

19a

20a

12

13

14

15

16

17

18

19

20

PR11

SW2

PR12

F1

PR23

PR24

PR21

BPI

W/BK

ST2

PR22 MV

BPU

L

VR

VRF

FF

FV

FP

PRP

PRF 11a

W/R

16 BK

20 BR

20 20 BR CF

2078Ω

10

16

7a

7

7 20 BR

CFT

BR

78Ω20

2a

2

BL

TSW

7a

20 WCF

8

8a

R 16

BR CFT

2a

3a

5a

6a

7a

8a

9a

10a

2

3

4

5

6

7

8

9

10

CR

PR3

U

SW1W/R

RSE

RSI

RV

C

RGB

RGA

RGD

RGC 1111a

12a

13a

16 15a

16a

18a

19a

20a

12

13

14

15

16

17

18

19

20

20

6a

16

TSW

TSW

W/BL

16 R

RB

16 BK

20 W

16 BK

BL 20

NPR

DWM

BL2024

21 ST1 TSW15 15a

W/R 18

W/BL 18

20

18 W/R

W

ONL(White)

W/R

20

16120V12V

1aTSW

W

16

WM

BR2039ΩW/BL

W/R

R

W/BK

BR

GY

20W/R

20

18

18

16

18

18

18

18

TLH(Red) W/R

20

20 GY

20

1a 1

CSW

2a

CSW

WTH112 14

1116 BL

4

31

16 BL

W/R 20

P1

ER

2P2

R22

WTH2W/BK

2118

18

4a

BL

ST3PTH34

BRC

20

TP1 TP2 TP3 TP4 TP5 TP6

20W/R

12

W

LDT

BLDRM

HDL(White)

W/Y

BL20

20 W/R

UM

20

1411

W/YLM

21

W/BL

W 16

OL

W/Y

BR 20

E5

E4

CV

F2F1

L1

E3

L

20

W/BK 16

12a

5a

11a

14a

13a

4a

3a

10a

6

12

5

11

14

13

4

3

10

CS

W

4

M

MM

M

SW

2

SW

1

WTH3

3132

BE

EUE

IUE

IDE

EDE

OL

RE

6

5

4

3

1

2

1

3

2

BE

EUE

IUE

IDE

EDE

RE

M

WTH1

20

UPPER OVEN

LOWER OVEN

HBL/HBN 66

Page 87: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #54173—76866-011

>E

2E

30

E3

N32 N

2.4

N2.

2

N31

.S

H2

HS2

4

P1

N3.

4N

3.4A

N3.

2

N3

4.S N4.

P1

H3

H

H3

02

4

4A

P1

HS2

4

P1

HS 2

4

P1

H4

>

44A

N1.

4N

1.4AH

10 H1

N1.

2N

34.

SN

32.S

E1

NO

TE: F

ront

edg

e, v

iew

ing

botto

m o

f coo

ktop

.

E10

N31

N33

N3

4

>

>

E4

N4.

4

N4.

2N

33.S

N31

.S

N31

.H

N32

.HN

33.H

N4.

P2

N3

4.H

H1

H2

H3

H4

L1 L2 X7

GN

D

1 2 3 4

N1.

P1

N2.

P1

N3.

P2

N4.

P2

N3.

P1

N1.

P2

N4.

P1

N2.

P2

N1.

P2

N1.

S2

H7

N4.

S2

N1.

4

N1.

4

N4.

S1

N1.

S1

H7

X7.

3N

31.2

X7.

1

S1

S2

P2

24

P1

S1

S2

P2

24

P1

4A4

E1.

4

N31

.4E

10.4

A

H10

H7

N1

N4

N2.

S1

H1–

4X

7.4

N3

4.2A

X7.

2N

33.S

N1.

S2

N2.

S2

N3

4.4

N4.

S1

S1

S2

P2

24

P1

N2

N3.

S1

X7.

3N

32.2

X7.

1

N4.

S2

N3.

S2

N32

.4

N2.

S1

S1

S2

P2

24 4

4A

P1

N3

N3.

P1

N3.

S1

X7.

4N

33.2

X7.

2

N2.

S2

N3.

4

H3

0

N3.

4

N33

.4E

30.

4AE

30

E1

Ele

men

t10

00W

SY

MB

OL

KE

Y

E10

Ele

men

t13

00W

E2

Ele

men

t15

00W

E2

Ele

men

t15

00W

E3

Ele

men

t15

00W

E4

Ele

men

t17

00W

800

WE

30

Ele

men

t

H1

Hea

t Ind

icat

or L

amp

N1

Reg

ulat

or, D

ual Z

one

N2

Reg

ulat

orN

3R

egul

ator

, Dua

l Zon

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4R

egul

ator

H2

Hea

t Ind

icat

or L

amp

H3

Hea

t Ind

icat

or L

amp

H4

Hea

t Ind

icat

or L

amp

H7

On

Lam

p

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0D

ual Z

one

Indi

cato

r Lam

pH

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one

Indi

cato

r Lam

p

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inal

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ck

N31

Ther

mos

tat L

imit

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embl

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ndic

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p

S

NK

T 72

Page 88: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #55173—76866—012

P>

P>

P>

P>

L1

X7

1 2

L2G

ND

X7

3 14

S1

S2

S1

S2

S1

S2

S1

S2

2P1

2P1

2P1

2P1

N1

N1

E1

E2

H10

E3

E4

N2

N3

N4

N2

N3

N4

N1

H1

H2

H3

H4

H7

N31

N32

N33

N3

4

S HN

31

2 4P1

2 P1

2 P1

2 P1

N

32N

33N

34

S H

S H

S H

4 P2

N1

4A 4

4E

104A

H30

N3

4A 4

E3

04A

N32

4N

33N

34

4

N2

4 P2

N3

4 P2

N4

44 P2

23

45

67

89

1011

1213

1415

1617

1819

2021

2223

2425

2627

2829

30

31

CU

RR

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PATH

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RR

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lem

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W17

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1500

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21–

Hig

h Li

mit

3–

Hea

t Ind

icat

or L

amp

N33

Ther

mos

tat L

imit

Ass

embl

y23

– H

igh

Lim

it5

– H

eat I

ndic

ator

Lam

pN

34

Ther

mos

tat L

imit

Ass

embl

y29

– H

igh

Lim

it7

– H

eat I

ndic

ator

Lam

p

SY

MB

OL

KE

YS

YM

BO

L K

EY

SY

MB

OL

KE

YS

YM

BO

L K

EY

NK

T 72

Page 89: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #56

>

>

E2

N32 N

2.4

N2.

2

N31

.S

H2

HS2

4

P1

P1

HS2

4

P1

HS2

4

P1

H

HH

4H

40

S

S2

2

4

P1

44A

4A

4 4

N5.

4N

5.4AH

50 H5

H3

N5.

2N

31.S

N33

.S

E5

E4

0E

4

E5

0

N35

>

44A

N1.

4N

1.4AH

10 H1

N1.

2N

35.S

N32

.S

E1

E10

N31

N33

N3

4

NO

TE: F

ront

edg

e, v

iew

ing

botto

m o

f coo

ktop

.

>E

3

N3.

4

N3.

2N

34.

SN

35.S

N4.

4A

N4.

2N4.

4

N4.

P1

N33

.S

N31

.H

N32

.HN

35.H

N33

.H

N4.

P2

N3

4.H

H1

H2

H5

H3

H4

L1 L2 X7

GN

D

1 2 3 4

N1.

P1

N5.

P1

N1.

P2

N5.

P2

N2.

P1

N2.

P2

N4.

P1

N4.

P2

N1.

P2

N1.

S2

H7

N4.

S2

N1.

4

N1.

4

N4.

S1

N1.

S1

H7

X7.

4 N

31.2

X

7.1

S1

S2

P2

24

P1

S1

S2

P2

24

P1

4A4

E1.

4

N31

.4E

10.4

A

H10

H7

N1

N4

N2.

S1

H1–

5X

7.3

N3

4.2A

X7.

2N

33.S

N1.

S2

N2.

S2

E4

N4.

S1

S1

S2

P2

24

P1

N2

N5.

S1

N3.

P2

X7.

3N

32.2

X7.

2N

3.P

1

N4.

S2

N5.

S2

N32

.4

N5.

S1

S1

S2

P2

24

P1

N3

N3.

S1

N2.

P2

N33

.2N

3.S

1N

2.P

1

N5.

S2

N32

.4

N2.

S1

S1

S2

P2

24 4

4A

P1

N5

N3.

S1

X7.

4N

35.2

N35

.4

X7.

1

N2.

S2

N3.

S2

N5.

4

N5.

4E

5.4

E5

0.4A

H5

0

E1

Ele

men

t10

00W

E10

Ele

men

t13

00W

E2

Ele

men

t15

00W

E3

Ele

men

t17

00W

E4

Ele

men

t16

00W

E4

0E

lem

ent

800

WE

5E

lem

ent

1000

WE

50

Ele

men

t10

00W

H1

Hea

t Ind

icat

or L

amp

N1

Reg

ulat

or, D

ual Z

one

N2

Reg

ulat

orN

3R

egul

ator

N4

Reg

ulat

or, D

ual Z

one

N5

Reg

ulat

or, D

ual Z

one

X7

Term

inal

Blo

ck

H2

Hea

t Ind

icat

or L

amp

H3

Hea

t Ind

icat

or L

amp

H4

Hea

t Ind

icat

or L

amp

H5

Hea

t Ind

icat

or L

amp

H7

On

Lam

pH

10D

ual Z

one

Indi

cato

r Lam

p

H5

0D

ual Z

one

Indi

cato

r Lam

pH

40

Dua

l Zon

e In

dica

tor L

amp

N31

Ther

mos

tat L

imit

Ass

embl

y–

Hig

h Li

mit

– H

eat I

ndic

ator

Lam

pN

32Th

erm

osta

t Lim

it A

ssem

bly

– H

igh

Lim

it–

Hea

t Ind

icat

or L

amp

N33

Ther

mos

tat L

imit

Ass

embl

y–

Hig

h Li

mit

– H

eat I

ndic

ator

Lam

pN

34

Ther

mos

tat L

imit

Ass

embl

y–

Hig

h Li

mit

– H

eat I

ndic

ator

Lam

pN

35Th

erm

osta

t Lim

it A

ssem

bly

– H

igh

Lim

it–

Hea

t Ind

icat

or L

amp

SY

MB

OL

KE

Y

4A

H4

0

N4.

4

N3

4.4

E4

0.4A

E4

0

>

NK

T 92

173—76865—011

Page 90: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #57

P>

2P1

E4

N4

2 P1

N3

4

N4

4A 4

E4

04A

N3

44

N4

4

P2

CU

RR

EN

T PA

THC

UR

RE

NT

PATH

CU

RR

EN

T PA

THC

UR

RE

NT

PATH

15E

1E

lem

ent

1000

W17

E10

Ele

men

t13

00W

21E

2E

lem

ent

1500

W23 25 27

E3

Ele

men

t17

00W

E4

Ele

men

t16

00W

31E

5E

lem

ent

1000

WE

40

Ele

men

t8

00W

33E

50

Ele

men

t10

00W

1H

1H

eat I

ndic

ator

Lam

p9/

15/1

7N

1R

egul

ator

, Dua

l Zon

e10

/21

N2

Reg

ulat

or11

/23

N3

Reg

ulat

or

13/3

1/33

N5

Reg

ulat

or, D

ual Z

one

12/2

5/27

N4

Reg

ulat

or, D

ual Z

one

1X

7Te

rmin

al B

lock

3H

2H

eat I

ndic

ator

Lam

p5

H3

Hea

t Ind

icat

or L

amp

7H

4H

eat I

ndic

ator

Lam

p9

H5

Hea

t Ind

icat

or L

amp

11H

7O

n La

mp

29H

40

Dua

l Zon

e In

dica

tor L

amp

19H

10D

ual Z

one

Indi

cato

r Lam

p

35H

50

Dua

l Zon

e In

dica

tor L

amp

N31

Ther

mos

tat L

imit

Ass

embl

y15

– H

igh

Lim

it1

– H

eat I

ndic

ator

Lam

pN

32Th

erm

osta

t Lim

it A

ssem

bly

21–

Hig

h Li

mit

3–

Hea

t Ind

icat

or L

amp

N33

Ther

mos

tat L

imit

Ass

embl

y23

– H

igh

Lim

it5

– H

eat I

ndic

ator

Lam

p

N35

Ther

mos

tat L

imit

Ass

embl

y31

– H

igh

Lim

it9

– H

eat I

ndic

ator

Lam

p

N3

4Th

erm

osta

t Lim

it A

ssem

bly

29–

Hig

h Li

mit

7–

Hea

t Ind

icat

or L

amp

P>

P>

P>

P>

L1

X7

1 2

L2G

ND

X7

3 14

S1

S2

S1

S2

S1

S2

S1

S2

S1

S2

2P1

2P1

2P1

2P1

N1

N1

E1

E2

H10

E3

E5

E5

0H

50H

40

N2

N3

N4

N5

N2

N3

N5

N1

H1

H2

H3

H4

H5

H7

N31

N32

N33

N3

4N

35

S HN

31

2 4P1

2 P1

2 P1

N32

N33

N35

2 P1

S H

S H

S HHS

4 P2

N1

4A 4

44

E10

4A

N32

4N

334

N2

4 P2

N3

4

P2

N5

N5

4

4

4

4A4A

P2

23

45

67

89

1011

1213

1415

1617

1819

2021

2223

2425

2627

2829

30

31

SY

MB

OL

KE

YS

YM

BO

L K

EY

SY

MB

OL

KE

YS

YM

BO

L K

EY

NK

T 92

173—76865—012

Page 91: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #58

BK

Gea

r Mot

or

Blo

wer

Mot

or

Cha

ssis

Gro

und

Sw

itchb

oard

(upp

er)

DH

D 8

65/9

65

Sw

itch

Con

trol

Boa

rd (l

ower

)

BK

BU

BU

WH

WH

OR

OR

OR

BK

BK

RD

RD

WH

WH

N L GG

N

GN

YE

YE

= b

lack

= re

d

= y

ello

w

= g

reen

= b

lue

= w

hite

= o

rang

e

Page 92: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #59

Gea

r Mot

or

Tria

cS

nubb

er

To R

emot

e B

low

erD

HG

565

Cha

ssis

Gro

und

Sw

itchb

oard

(upp

er)

DH

D 8

05/9

05

Sw

itch

Con

trol

Boa

rd (l

ower

)BU

BU

BU

WH

OR

YE

OR

OR

BK

BK

BK

BK

BK

RD

RD

WH

WH

WH

N L G

GN

GN

GN

YE

= b

lack

= re

d

= y

ello

w

= g

reen

= b

lue

= w

hite

= o

rang

e

Page 93: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #60

1M1M

M 1

X2

21

34

562

A2

f2-f4I2

.4-

I2.5

-I2

.7-1

I2.4

-

185˚

F

37

6

NTC

24

15

4

e5

e6

F

N L1

1

e0a1

Con

trol

Mod

ule

– I2

m2

m3

f5f1

r1

I2.7

-2

I2.2

-I2

.8

I2.1

-1

I2.1

-2

Sym

bol K

ey

a1O

N/O

FF S

WIT

CH

e0D

OO

R S

WIT

CH

e5FL

OW

SW

ITC

H

f1W

ATE

R L

EV

EL

SW

ITC

Hf5

HIG

H L

IMIT

185

˚Fm

2C

IRC

ULA

TIO

N M

OTO

Rm

3D

RA

IN M

OTO

RN

TCTE

MP

ER

ATU

RE

SE

NS

OR

r1H

EAT

ING

ELE

ME

NT

s2W

ATE

R S

OLE

NO

IDX

2S

ER

VIC

E C

ON

NE

CTO

R

L

perm

anen

t spl

itca

paci

tor m

otor

(m2)

N

e6FL

OAT

SW

ITC

H

s2

2 1

42

1

A2

AC

TUAT

OR

(Dis

pens

er)

SH

U 3

3

560—2032–576

Page 94: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #61

Con

trol

Mod

ule–

I2

On/

Off

Sw

itch

– a1

Floa

t Sw

itch

– e6

Ele

ctric

al S

uppl

y –

l1H

eatin

g E

lem

ent –

r1Fl

ow S

witc

h –

e5D

rain

Mot

or –

m3

Gro

und

– P

E

Circ

ulat

ion

Mot

or–

m2

Wat

er S

olen

oid

– s2

Wat

er L

evel

Sw

itch

– f1

NTC

– f2

& f4

/ T

herm

osta

t – f5

Wiri

ng C

onne

ctor

– I6

Act

uato

r (D

ispe

nser

) – A

2

A2

WHRD-I2.1-1WHRD-e5-1

WH-I2.1-2WH-I6-2

WH-l1-NGYBK-l2.7-2

BK-l1-L1

21

34

56

GY

RD

-e6-

4G

YR

D-l6

-9

WH

VT-

m2-

2

L1

BK-

a1-4

WH

-a1-

2

GN

YE

-r1

L1 N

PE

-3

RD

-e5-

4G

NY

E-l1

-PE

-3G

NY

E-P

E-2

GN

YE

-s2

GN

YE

-m2

RD

-f5

GN

YE

-PE

-1

GN

YE

-r1

GN

YE

-m2

GN

YE

-PE

-4124

BU

-l2.5

-7B

U-l2

.5-6

RD

-f5W

H-e

6-1

GN

-NTC

GN

-NTC

VT-

s2B

U-f1

-4

GY

RD

-m3-

L1

RD

-l2.7

-1W

H-a

1-6

BU

-l2.4

-5

BK-

m2-

1B

U-l2

.4-3

BU

-l2.4

-4

BU

-l2.4

-2

l6 987654321

BK-

l6-8

WH

VT-

e5-1

WH

VT-

m3

GN

YE

-PE

-1G

NY

E-r

1

1M12

3

K4

GN

-l6-4

GN

-l6-5

RD

-l6-1

RD

-r1

Hig

hLi

mit

f2-f4 f5

185˚

F

RD

-e6-

1

BU

-l6-7

P

4 2

1

Doo

r Sw

itch

– e0

WH

-I6-2

RD

-f1-1

GY

RD

-m3-

L1

WH

-s2

4

21

RD

-r1

WH

RD

-a1-

1W

HV

T-m

2-3

4

2

1

VT-

l6-5

WH

-e6-

2

YE

-l2.2

-1

YE

-l2.2

-2

GN

YE

-r1

NTC

1

GYBK-a1-3RD-l6-1

WH-a1-5

6

WHRD-a1-1

21

BU-I6-8BU-I6-9BU-a1-6

BU-I6-6BU-I6-73

45

26

78

1

BU-I6-4

BU-I2.4-1

BU-I6-5

74

35

YE-A2

1

YE-A2

2

12

21

2

.8.2

.1.5

.6.4I2.

.7

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

e0

SH

U 3

3

560—2032–576

Page 95: Bosch Dishwasher SHU Complete Troubleshooting Guide

M 1

M 1

M 1M 1

F

4

1213

1110

98

76

54

31

2

21

24

43

1

u2

m2

ba

s2

e0

N

L1a1

f1

h1

curr

ent p

ath

Sym

bol K

ey

curr

ent p

ath

a1M

AIN

SW

ITC

H2

e0D

OO

R S

WIT

CH

3A

2A

CTU

ATO

R (D

ispe

nser

)9

e6FL

OAT

SW

ITC

H7

e5FL

OW

SW

ITC

H11

f3TH

ER

MO

STA

T 13

5˚F

8f1

WAT

ER

LE

VE

L S

WIT

CH

5

f4TH

ER

MO

STA

T 14

9˚F

6

Sym

bol K

ey

PO

WE

R S

CR

UB

b1

& b

3

RE

GU

LAR

b1

& b

2

RIN

SE

& H

OLD

b3

f5H

IGH

LIM

IT 1

85˚F

11 curr

ent p

ath

h1O

N/O

FF L

AM

P4

m1

TIM

ER

MO

TOR

12m

2C

IRC

ULA

TIO

N M

OTO

R13

m3

DR

AIN

MO

TOR

10r1

HE

ATIN

G E

LEM

EN

T11

s2W

ATE

R S

OLE

NO

ID5

u–TI

ME

R C

ON

TAC

TS–

Sel

ecto

r Sw

itch

Con

tact

s

L

perm

anen

t spl

itca

paci

tor m

otor

(m2)

N

SH

U 3

032/

303

6

u6

m1

m3

ba

u4

ba

e5

24

1

185

˚F

f5r1

e6

2

1

u5

ba

14

9˚F

f4

135

˚F

f3

b112

b35

34

u3

ba

PTC

A2

DIAGRAM #625600 00 2809

Page 96: Bosch Dishwasher SHU Complete Troubleshooting Guide

DIAGRAM #635600 00 2830

e0

1M

Sel

ecto

r Sw

itch

– b

YE-u-3aBU-f3VT-u-3GN-f3

WH-u-6a

12

34

5

On

/ O

ff S

witc

h –

a1D

oor S

witc

h –

e0

WHRD-l6-9

BK-l1-L1

WHRD-A2WH-l1-N

WHVT-u-4RD-l6-5

21

34

56

h1 a1

Tim

er –

u

GN

-I6-6

RD

-A2

VT-

b-3

YE

-b-1

BK-

m2-

1G

YR

D-I6

-8

GY

BK-

e5-1

WH

RD

-A2

m1

BU

-l6-4

GY-

l6-1

GN

-f3

WH

-b-5

WH

-I6-3

WH

VT-

a1-3

1M3b 3a 3 4b 4a 4

65b 5a 5 6b 6a

2b 2a 2

GY

RD

-l6-8

GY

RD

-e6-

4

BU

RD

-m2-

2B

UR

D-s

2

L1

Dra

in M

otor

– m

3

BK-

a1-4

WH

-a1-

2

GN

YE

-r1

L1 N

PE

-3

Ele

ctric

al S

uppl

y –

l1

VT-

f1-2

BU

RD

-m3

GN

YE

-r1

Wat

er S

olen

oid

– s2

RD

-e5-

4G

NY

E-I1

-PE

-3G

NY

E-P

E-2

GN

YE

-s2

GN

YE

-m2

RD

-f5

Hea

ting

Ele

men

t – r1

GN

YE

-PE

-1

GN

YE

-r1

GN

YE

-m2

GN

YE

-PE

-4

Gro

und

– P

E

12

GN

YE

-PE

-15

GN

YE

-s2

6 4

RD

-u-3

b

WH

RD

-u-m

1W

HR

D-a

1-1

Act

uato

r (D

ispe

nser

) – A

2

WH

RD

-a1-

1G

YR

D-u

-4b

GN

-u-5

bR

D-a

1-3

BU

-u-5

aW

H-u

-6a

GY-

u-5

BU

RD

-m2

WH

RD

-f5

GY

RD

-m3-

L1

GN

-f4R

D-e

6-1

BU

-f1-1

WH

-e5-

2

GY-

e6-2

Wiri

ng C

onne

ctor

– l6

123456789

BK-

u-2b

BU

RD

-m3

BU

RD

-l6-9

GN

YE

-PE

-1G

NY

E-r

1

Circ

ulat

ion

Mot

or –

m2

12

3

K1

BU

-b-2

GN

-u-5

bG

N-b

-4

Ther

mos

tat –

f3

161˚

F

WH

-e5-

2W

H-f1

-4

GN

-l6-6

WH

RD

-l6-9

RD

-r1

Ther

mos

tats

– f4

& f5

f4

149˚

F

f5

185˚

F

BU

-l6-4

WH

-f4

VT-

s2

Wat

er L

evel

Sw

itch

– f1

P

4 2

1

RD

-l6-5

GY

RD

-m3-

L1

GY-

l6-1

Floa

t Sw

itch

– e6

4 21

RD

-r1

WH

-f4W

H-l6

-3

Flow

Sw

itch

– e5

4 21

BK

=bl

ack

BN

=br

own

RD

=re

dY

E=

yello

wG

N=

gree

nB

U=

blue

VT

=vi

olet

GY

=gr

ayW

H=

whi

teP

K=

pink

Hig

h Li

mit

A2

SH

U 3

032/

303

6

GN

YE

-PE

-6

Page 97: Bosch Dishwasher SHU Complete Troubleshooting Guide

B

WA

SH

STA

LLR

INS

E S

TALL

12

34

516

618

78

910

1112

1314

1517

1920

2142

2223

2425

2637

4727

2835

3229

30

3133

34

36

38

39

40

4143

44

454

64

84

95

051

5253

54

555

657

60

58

59

18090

18018030

3060180f4+60606030f1+3030

FP

303030180150f1+3030303030601801801260176f3/f4+4150f1+303030303060180150f1+30303056f1+43030180150f1+30303056f1+430

TT

TT

P

PU+HF+U+KU+HF+UF+UF+U

F+UPP+UUF+UFPF+UPP+UUUUUUU+HF+U+R FPF+UPP+UUUF+UFPP+UF+UFPP+UUF+UFPP+UF+UFP

PR

E-W

AS

HP

RE

-WA

SH

WA

SH

W/

HE

ATP

RE

-RIN

SE

RIN

SE

W/

HE

ATD

RY

ING

87654321 11 12 13 14 15 16 17 18 19

a b a ba ba ba ba ba ba b

Tim

er M

otor

Wat

er S

olen

oid

Ther

mos

tat 1

49˚

F

Hea

ting

Ele

men

tD

rain

Mot

or

Act

uato

rTh

erm

osta

t 135

˚FC

ircul

atio

n M

otor

Pow

er S

crub

(Reg

Tem

p)

Reg

ular

(Hig

h Te

mp)

Rin

se &

Hol

d

Pow

er S

crub

(Hig

h Te

mp)

Reg

ular

(Reg

Tem

p)

149˚

149˚

135˚

149˚

T I M E R C O N T A C T S P R O G R A M

TIM

E IN

SE

CO

ND

S

OP

ER

ATIO

N

TIM

ER

PO

SIT

ION

WA

SH

/RIN

SE

149˚

F/14

9˚F

135˚

F/14

9˚F

135˚

F/14

9˚F

149˚

F/14

9˚F

OP

ER

ATIO

N K

EY

DR

AIN

ING

P=

FILL

ING

F=

CIR

CU

LATI

ON

U=

DE

TER

GE

NT

DIS

PE

NS

ING

TIM

ING

KE

Y (T

IME

FO

RS

EN

SO

R T

O B

E S

ATIS

FIE

D)

f1 =

WAT

ER

LE

VE

L S

WIT

CH

f3 =

135

˚ TH

ER

MO

STA

Tf4

= 1

49˚

TH

ER

MO

STA

T

R=

RIN

SE

–AID

DIS

PE

NS

ING

K=

DR

YIN

GT

=H

EAT

ING

H=

SH

U 3

03X

DIAGRAM #64

5600 03 5985

Page 98: Bosch Dishwasher SHU Complete Troubleshooting Guide

BOSCHDishwasher Repair Manual

FOR MODELS:

SHI

4302 43066802 68056806

SHU

3002 30063012 30164002 40064016 40224026 40364302 43064312 43165302 53045305 53065312 53145315 53166802 68056806

SHV

4303 4803

BSH Home Appliances2800 South 25th AvenueBroadview, Illinois 60153

Effective: December 1, 1998 1st Edition/Rev. 0-A

Page 99: Bosch Dishwasher SHU Complete Troubleshooting Guide

Introduction

This Repair Manual is designed to assist you in the evaluation, diagnosis and repair ofthe current SHI, SHU and SHV model dishwasher series. To better understand theseappliances, their operation and construction we suggest that you read this manualthoroughly before attempting any repairs.

All information is current at the time of printing.

Page 100: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 1

Table of Contents

Description Page

Section 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Warranty / Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Model / Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 – 7Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Section 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Operation, SHU 3002 / 3006 / 3012 / 3016 / 4002 / 4006 / 4016 / 4022 / 4026 / 4036 . 10Cycle Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Operation, SHI 4302 / 4306 — SHU 4302 / 4306 / 4312 / 4316 . . . . . . . . . . . . . . . . . . . . . . 12Cycle Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Operation, SHU 5302 / 5304 / 5305 / 5306 / 5312 / 5314 / 5315 / 5316 . . . . . . . . . . . . . . 14Cycle Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Operation, SHI / SHU 6802 / 6805 / 6806 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Cycle Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Section 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Rack System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 – 21Interior Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 – 25Detergent / Rinse-Agent Dispenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Washability / Drying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

SERVICE REMINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Section 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Outer Door Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Door Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Dispenser Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Dispenser Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Fascia Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 – 35Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Section 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Base Components – Front Accessible: Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . 38

Circulation Motor Capacitor . . . . . . . . . . . . . . . . . . . . 38Leveling Legs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Water Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Drain Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 — 41

Page 101: Bosch Dishwasher SHU Complete Troubleshooting Guide

2 H

SERVICE REMINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Description Page

Section 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Left Side Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Left Side Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Water Inlet / Discharge System – Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 – 47Water Inlet / Discharge System – Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Section 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Right Side Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Right Side Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51NTC Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52NTC Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 – 57Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Section 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59Tank Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 – 62Base Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63Circulation Pump / Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64Circulation Pump / Motor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65Heater Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66Heater Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67Aqua Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68Door Spring Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Section 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71Wiring Diagrams / Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(see Tech Manual)

Test Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(see Test Programs)

Table of Contents

Page 102: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 3

Section 1

Description Page

Warranty / Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Model / Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 – 7

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Page 103: Bosch Dishwasher SHU Complete Troubleshooting Guide

4 H

Warranty / Technical Specifications

Warranty

1st Year Parts & Labor.2nd Year Parts only.3rd – 5th Year Electronic Boards, parts only.3rd – 5th Year Racks, parts only.

This does not include rack wheels; silverware baskets or plastic shelving.

Lifetime Stainless Steel.Must receive a special authorization before attempting any repairs or replacement.

Cosmetic items, Facia and Door Panels are only warranted against manufacturing defects. In the event of a scratch ordent have the customer contact the Customer Service Department.

CUSTOMER SERVICE 800-944-2904

TECHNICAL SERVICE 888-522-6724

Technical Specifications

*always disconnect both component leads before measuring for resistance.

Electrical Warning:

To avoid personal injury and/or property damage it is important that safe servicing practices and procedures are observed atall times. Disconnect the electrical service before attempting any repairs, and live tests are to be performed by experiencedand qualified service personnel only.

Electrical RequirementsRating 120V / 60HzDedicated Circuit 15 AmpTotal Amps (load rated) 11 Amp

Water SupplySuggested Incoming Temp. 140° fPSI Min / Max 20 / 60Water Connection 3/8” Copper or Flexible Stainless Steel

Component ValuesComponent Ohms* Amperage OtherWater Valve 1K — —Drain Motor 16 .75 —

Circulation Motor 10 1.25 —NTC 55K at room temp.

(75° f)— Resistance decreases as

temperature increasesPTC (actuator) 200 — —

Heater 10.5 9.75 1200 watts

Page 104: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 5

Model / Serial Number Location

Fig. 1-1 Fig. 1-2

Located on the right hand side of the Inner Door is the Model and Serial number tag, Fig. 1-1.The Model and Serial numbers can be found on the left side of the tag within the black outline box, Fig. 1-2.The Model Number for this unit is SHU 5312 UC/U06.

Located just under the Model Number is the ten-digit Serial Number.The Serial Number for this unit is FD 7801 123456.

Service note: A second Model and Serial number tag is located on the Base, see Section 5, Fig. 10-1.

Page 105: Bosch Dishwasher SHU Complete Troubleshooting Guide

6 H

Product Overview

Drain Motor

Lower Spray Arm

Upper Spray Arm

Aqua SensorNTC

Flow Switch

Circulation Motor / Pump

Flow Through Heater

Impeller Cover

Fig. 2-1

The Bosch dishwasher utilizes a two motor system with separate Circulation and Drain Motors, and aFlow Through Heater controlled by a Flow Switch and NTC Thermistor. With some models also havingthe advanced logic feature of an Aqua Sensor turbidity measuring devise, Fig. 2-1.

• A two motor system allows each motor to be designed for a single function, thus reducing overallsize and energy consumption. While also reducing operating noise.

• The Flow-Through Heater allows a shorter heating cycle since all water must pass through theHeater, increasing water temperature by approximately two degrees a minute. To protect theheater from dry fire, the Flow Switch will not allow the Heater to activate unless water is flowing.

• Water temperature is controlled by the NTC (negative temperature coefficient). As watertemperature increases the NTC records the decrease in resistance. The Control Unit Logic Boardmeasures this resistance change and allows the program to advance once the correcttemperature (resistance level) is reached.

• The Aqua Sensor turbidity measuring device, which is available only on select models, evaluatesthe pre-wash water using a beam of light and a pick-up sensor. If the beam passes easily throughthe pre-wash water then no additional wash water is added. If the beam cannot pass through,then the pre-wash water is drained and a fresh fill is added for the main wash cycle.

The heated water then advances through the system via a four level wash system that uses both anupper and lower spray arm as well as an overhead sprayer, Fig. 2-2.

Page 106: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 7

Overhead Spray

Upper Spray ArmCoupling

Feed Tube

Lower Spray Arm

Sump Flow ThroughHeater

Aqua Sensor

Fig. 2-2

Product Overview

Page 107: Bosch Dishwasher SHU Complete Troubleshooting Guide

8 H

Notes

Page 108: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 9

Section 2

Description Page

Operation, SHU 3002 / 3006 / 3012 / 3016 / 4002 / 4006 / 4016 / 4022 / 4026 / 4036 . 10

Cycle Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Operation, SHI 4302 / 4306

SHU 4302 / 4306 / 4312 / 4316 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Cycle Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Operation, SHU 5302 / 5304 / 5305 / 5306 / 5312 / 5314 / 5315 / 5316 . . . . . . . . . . . . . . 14

Cycle Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Operation, SHI & SHU 6802 / 6805 / 6806 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Cycle Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Page 109: Bosch Dishwasher SHU Complete Troubleshooting Guide

10 H

Fig. 3-1 Fig. 3-2

OperationSHU 3002/3006/3012/3016/4002/4006/4016/4022/4026/4036

The SHU 30** and 40** are both mechanical units that operate using a basic Timer and Selector Switch.

TO OPERATE EITHER MODEL, (a SHU 4006 is shown):

Fig. 3-2.

First select a cycle by pushing the corresponding Cycle Button in. The Cycle Button remains inthe indented position until another cycle is chosen.

Now, depress the On/Off Button until it locks in place and the On LED illuminates.

Note: The On lamp will remain illuminated until the On/Off Button is depressed a second timeturning the unit off.

If the door is opened during the cycle, the On/Off Button will be reset to off and mustagain be depressed to re-active the unit.

Fig. 3-1.

Then, turn the Timer Knob slowly clockwise to the start position and release. You will hear theDrain Motor activate.

The Timer Knob will continue to advance clockwise back to the twelve O’clock position until thecycle is complete.

Please note: During the Rinse & Hold Cycle the Timer Knob will only advance to the two O’clockposition and then stop, indicating the end of the Rinse & Hold cycle.

Page 110: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 11

Cycle ChartSHU 3002/3006/3012/3016/4002/4006/4016/4022/4026/4036

Delicate cycle not used on SHU 3002/3006/3012/3016

Drying

85

6.55

24.75

78

6.55

24.75

10

1.19

4.5

Rinse-aid161˚F

Rinse

Wash161˚F

Pre-wash

70

5.36

20.25

Type of dishwaree.g. china,

pots/pans,cutlery,glasses,etc.

Wash cycle

Cycle sequence

Cycle detailsDuration in minutesWater consumptionin gallonsWater consumptionin liters

Type of foodremains

Amount offood remains

Condition offood remains

Shown above are the range of values that may be obtained while running the dishwasher under normalconditions. Actual values may vary. The actual cycle duration, water and energy usage are dependent uponinlet water temperature.

Non-deli-cate

Soups, casseroles,sauces, potatoes,pasta, rice, eggs,roast or fried food

a lot

stuck on hard

a lot a little a little very little

PowerScrub

RegularWash

Pre-rinse

Drying

Rinse-aid161˚F

Rinse

Wash140˚F

Pre-wash

Pre-rinse Pre-rinse

Rinse& Hold

Soups, potatoes,pasta, rice, eggs,roast or fried food

Coffee, cakes, milk,salami, cold drinks,

salads

Mixed MixedDelicate

loosely attached

DelicateWash

Drying

Rinse-aid161˚F

Rinse

Wash140˚F

Pre-rinse

Page 111: Bosch Dishwasher SHU Complete Troubleshooting Guide

12 H

Fig. 3-3 Fig. 3-4

OperationSHI 4302/4306 SHU 4302/4306/4312/4316

The SHI or SHU 43** series operates using an electronic Control Unit.

TO OPERATE:

Fig. 3-3.

First depress the On/Off Button until it locks in place.

Fig. 3-4.

Once the On/Off Button is depressed the LED above the previously used cycle will illuminate.

To change the cycle, simply press the desired Cycle Button twice. The LED above that cycle willthen illuminate.

As the program advances the Cycle Progress LED’s will illuminate (wash, rinse / dry). When thecycle is complete the Clean LED will be illuminated.

TO CANCEL A CYCLE:

Press the Power Scrub Plus and Regular Wash Buttons both in at the same time. The unit willthen drain and the Clean LED will illuminate.

Please note: If the door is opened during the cycle, the On/Off Button will be reset to off andmustbe depressed again to re-active the cycle. The cycle will resume from where it left off.

Page 112: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 13

Drying

Rinse-aid161˚F

SecondRinse

Drying

Rinse-aid161˚F

99

26.9

80

20.4

10

4.5

First Rinse

SecondRinse

Wash161˚F

Pre-wash125˚F

85

22.7

Type of dishwaree.g. china,

pots/pans,cutlery,glasses,etc.

Wash cycle

Cycle sequence

Cycle detailsDuration in minutesWater consumptionin gallonsWater consumptionin liters

Type of foodremains

Amount offood remains

Condition offood remains

Shown above are the range of values that may be obtained while running the dishwasher under normalconditions. Actual values may vary. The actual cycle duration, water and energy usage are dependent uponinlet water temperature.

Non-deli-cate

Soups, casseroles,sauces, potatoes,pasta, rice, eggs,roast or fried food

a lot

stuck on hard

a lot a little a little very little

PowerScrubPlus

RegularWash

Pre-rinse

Drying

Rinse-aid161˚F

Rinse

Wash140˚F

Pre-rinse Pre-rinse

Rinse& Hold

Soups, potatoes,pasta, rice, eggs,roast or fried food

Coffee, cakes, milk,salami, cold drinks,

salads

Mixed MixedDelicate

loosely attached

ScrubWash

First Rinse

Wash150˚F

Pre-rinse

7.1 5.4 1.26

Cycle ChartSHI 4302/4306 SHU 4302/4306/4312/4316

Page 113: Bosch Dishwasher SHU Complete Troubleshooting Guide

14 H

Fig. 3-5 Fig. 3-6

OperationSHU 5302/5304/5305/5306/5312/5314/5315/5316

The SHU 53** series operates using an electronic Control Unit.

TO OPERATE:

Fig. 3-5.

First depress the On/Off Button until it locks in place.

Fig. 3-6.

Once the On/Off Button is depressed the LED above the previously used cycle will illuminate. To change the cycle, simply pressthe desired Cycle Button twice. The LED above that cycle will then illuminate.

The Cycle Countdown will display an approximate run time for the cycle chosen. This run time will depend on incoming watertemperature and the turbidity of the pre-wash water.

Note: It is normal for the Countdown Display to remain at a time increment for more than one minute, or skip a time incrementdepending on the calculations of the Control Unit.

Also, with continued use the Control Unit will learn the wash and temperature patterns for the most commonly usedprograms and will then reduce the overall start and running times.

At the end of the cycle the display will show a CL, indicating that the cycle is complete.

TO CANCEL A CYCLE:

Press the Scrub Wash and Delicate / Econo Buttons both in at the same time. The unit will then drain and the figure CL willappear in the display.

DELAY START:

The Delay Start feature allows the unit to be delayed for up to nine hours. To program, start the unit as described above, butafter selecting a cycle push the Delay Start button. The display will show a 1h, or one-hour delay. Continue to depress theDelay Start Button until the desired delay time is reached (up to nine hours, 9h).

The unit will begin automatically once the delay time has elapsed. To reset the delay, press the Delay Start Button until it reaches 0h.

REFILL RINSE AGENT LED:

The Refill Rinse Agent LED is activated via a Reed Switch on the Detergent Dispenser, Section 4, Fig. 8-3. The LED willilluminate when the Rinse Agent Dispenser is empty.

Service note: The Refill Rinse Agent LED will also illuminate when the dishwasher door is opened and thenclosed even if the Dispenser is full, but will only remain lit for a few seconds.

“F” CODE:

An “F” in the display window indicates a filling fault, see Section 6, Fig. 12-1 through Fig.12-6.

Please note: If the door is opened during the cycle, the On/Off Button will be reset to off and must be depressed againto re-active the cycle. The cycle will resume from where it left off.

Page 114: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 15

Cycle ChartSHU 5302/5304/5305/5306/5312/5314/5315/5316

Drying

Rinse-aid161˚F

SecondRinse

Drying

Rinse-aid161˚F

99

7.1/5

26.9/18.9

70

3.6/2.5

13.5/9.5

10

1.2/0.8

4.5/3.2

First Rinse

SecondRinse

Wash161˚F

Pre-wash125˚F

80

5.4/3.8

20.4/14.4

85

6/4.2

22.7/15.9

Type of dishwaree.g. china,

pots/pans,cutlery,glasses,etc.

Wash cycle

Cycle sequence

Cycle detailsDuration in minutesWater consumptionin gallonsWater consumptionin liters

Type of foodremains

Amount offood remains

Condition offood remains

The Bosch Sensotronic™ will reduce water consumption by approximately 20%, in the case of lightly soileddishes. When Top Rack Only™ feature is used the water consumption is reduced approximately 30%.Shown above are the range of values that may be obtained while running the dishwasher under normalconditions. Actual values may vary. The actual cycle duration, water and energy usage are dependent uponinlet water temperature and amount of soil on dishware.

Non-deli-cate

Soups, casseroles,sauces, potatoes,pasta, rice, eggs,roast or fried food

a lot

stuck on hard

a lot a little a little very little

PowerScrubPlus

RegularWash

Pre-rinse

Drying

Rinse-aid161˚F

Rinse

Wash140˚F

Pre-rinse

Delicate/Economy

Drying

Rinse-aid155˚F

Rinse

Wash140˚F

Pre-rinse

Rinse& Hold

Soups, potatoes,pasta, rice, eggs,roast or fried food

Coffee, cakes, milk,salami, cold drinks,

salads

Mixed MixedDelicate

loosely attached

ScrubWash

First Rinse

Wash150˚F

Pre-rinse

Page 115: Bosch Dishwasher SHU Complete Troubleshooting Guide

16 H

Fig. 3-7 Fig. 3-8

OperationSHI/SHU 6802/6805/6806

The SHI / SHU 68** series operates using an electronic Control Unit.

TO OPERATE:

Fig. 3-7.First depress the On/Off Button until it locks in place.

Fig. 3-8.Once the On/Off Button is depressed the LED above the previously used cycle will illuminate. To change the cycle, simply pressthe desired Cycle Button twice. The LED above that cycle will then illuminate.

The Cycle Countdown will display an approximate run time for the cycle chosen. This run time will depend on incoming watertemperature and the turbidity of the pre-wash water.

Note: It is normal for the Countdown Display to remain at a time increment for more than one minute, or skip a time incrementdepending on the calculations of the Control Unit.

Also, with continued use the Control Unit will learn the wash and temperature patterns for the most commonly usedprograms and will then reduce the overall start and running times.

At the end of the cycle the display will show a CL, indicating that the cycle is complete.

TO CANCEL A CYCLE:Press the Scrub Wash and Delicate / Econo Buttons both in at the same time. The unit will then drain and the figure CL willappear in the display.

DELAY START:

The Delay Start feature allows the unit to be delayed for up to nine hours. To program, start the unit as described above, butafter selecting a cycle push the Delay Start button. The display will show a 1h, or one-hour delay. Continue to depress theDelay Start Button until the desired delay time is reached (up to nine hours, 9h).

The unit will begin automatically once the delay time has elapsed. To reset the delay, press the Delay Start Button until it reaches 0h.

TOP RACK ONLY:The Top Rack Only feature can be used in conjunction with any cycle. To active, press the Top Rack Only Button after selecting acycle, the Top Rack Only LED will illuminate and all water will be diverted to the upper wash arm for the complete cycle.

REFILL RINSE AGENT LED:The Refill Rinse Agent LED is activated via a Reed Switch on the Detergent Dispenser, Section 4, Fig. 8-3. The LED willilluminate when the Rinse Agent Dispenser is empty.

Service note: The Refill Rinse Agent LED will also illuminate when the dishwasher door is opened and thenclosed even if the Dispenser is full, but will only remain lit for a few seconds.

“F” CODE:

An “F” in the display window indicates a filling fault, see Section 6, Fig. 12-1 through Fig.12-6.

Please note: If the door is opened during the cycle, the On/Off Button will be reset to off and must be depressed againto re-active the cycle. The cycle will resume from where it left off.

Page 116: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 17

Cycle ChartSHI/SHU 6802/6805/6806

QuickWash

Drying

Rinse-aid140˚F

Rinse

Wash104˚F

Drying

Rinse-aid161˚F

SecondRinse

Drying

Rinse-aid161˚F

99

7.1/5

26.9/18.9

70

3.6/2.5

13.5/9.5

10

1.2/0.8

4.5/3.2

First Rinse

SecondRinse

Wash161˚F

Pre-wash125˚F

30

2.7/1.9

10.5/7.4

80

5.4/3.8

20.4/14.4

85

6/4.2

22.7/15.9

Type of dishwaree.g. china,

pots/pans,cutlery,glasses,etc.

Wash cycle

Cycle sequence

Cycle detailsDuration in minutesWater consumptionin gallonsWater consumptionin liters

Type of foodremains

Amount offood remains

Condition offood remains

The Bosch Sensotronic™ will reduce water consumption by approximately 20%, in the case of lightly soileddishes. When Top Rack Only™ feature is used the water consumption is reduced approximately 30%.Shown above are the range of values that may be obtained while running the dishwasher under normalconditions. Actual values may vary. The actual cycle duration, water and energy usage are dependent uponinlet water temperature and amount of soil on dishware.

Non-deli-cate

Soups, casseroles,sauces, potatoes,pasta, rice, eggs,roast or fried food

a lot

stuck on hard

a lot a little a little very little

PowerScrubPlus

RegularWash

Pre-rinse

Drying

Rinse-aid161˚F

Rinse

Wash140˚F

Pre-rinse

Delicate/Economy

Drying

Rinse-aid155˚F

Rinse

Wash140˚F

Pre-rinse

Rinse& Hold

Soups, potatoes,pasta, rice, eggs,roast or fried food

Coffee, cakes, milk,salami, cold drinks,

salads

Mixed MixedDelicate

loosely attached

ScrubWash

First Rinse

Wash150˚F

Pre-rinse

Page 117: Bosch Dishwasher SHU Complete Troubleshooting Guide

18 H

Notes

Page 118: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 19

Section 3

Description Page

Rack System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 – 21

Interior Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 – 25

Detergent / Rinse-Agent Dispenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Washability / Drying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Page 119: Bosch Dishwasher SHU Complete Troubleshooting Guide

20 H

Fig. 4-1

Fig. 4-2 Fig. 4-3

Rack System

Rack configurations for individual dishwashermodels will vary. However, all Racks areconstructed from a steel wire grid with a graynylon outer covering.

Note: Racks may discolor due to the watersupply or types of food remaining onthe dishes. We recommend that avinegar wash be used to assist inremoving these stains.

Start the unit, and let run approximatelyten minutes, then pour in two cups ofwhite vinegar and let the unit completethe cycle, repeat if necessary.

On select models the Upper Rack is heightadjustable. To adjust rack height, or to remove theRack from the unit.

Fully extend the Rack as shown in Fig. 4-2

Note how the Rack Rollers are designed to rideon the outside of the Rails for a smootheroperation.

With the Rack fully extended. Lift up on the Rackuntil the Front Rollers disengage from the Rail.

Now bring the Rack out further and allow theRear Wheels to disengage.

Rollers: Rack Rollers are a press fit makingfor easy removal and replacement.

Page 120: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 21

Rack System

Fig. 4-4 Fig. 4-5

Attached to the Upper Rack is the Upper Spray Arm Assembly.

The Upper Spray Arm can be removed from the Upper Spray Arm Assembly for cleaning orreplacement by turning the Arm Nut counter-clockwise, Fig. 4-4.

And then bringing the Arm down and off the Arm Assembly, Fig. 4-5.

Page 121: Bosch Dishwasher SHU Complete Troubleshooting Guide

22 H

Fig. 5-1

Interior Features

1

2

3

7

2

4

6

5

Interior features for all model dishwasher covered in this repair manual are identical. Thosefeatures include:

1. Strike Plate. The Strike Plate is in a fixed position and cannot be adjusted.2. Upper Rack Rails and Guide Rollers.3. Door Gasket4. Lower Spray Arm5. Filter Basket6. Filter Screen7. Feeder Tube Assembly

Page 122: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 23

Fig. 5-2 Fig. 5-3

Interior Features

Fig. 5-4

Fig. 5-5 Fig. 5-6The Door Gasket is press fit into a channelmolded around the Tank.

Note: Two inches of overlap are left at each endof the Gasket to insure a proper seal.

The Upper Rack Rails are madeof stainless steel with a plasticend cap.

To remove the Rail, disengagethe End Cap by applyingoutward pressure to the Cap’stop tab, unclipping it from theRail. Then slide the Rail out fromthe Guide Rollers.

The Upper Rack Guide Rollersare permanently attached to theTank and cannot be removed orrepaired.

To remove the Gasket, simply pull it away from theTank Channel.

To replace, press the ribbed end firmly into thechannel until secure. No sealant or glue is required.

Service tip: To test for a bad Door Gasket, open the dishwasher door and insert a dollar bill, thenclose the door and pull the bill out. If the bill is snug the Gasket is good, if the bill slidesout easily the Door Gasket may need to be replaced.

Page 123: Bosch Dishwasher SHU Complete Troubleshooting Guide

24 H

Interior Features

Fig. 5-11 Fig. 5-12

1

2 2

Fig. 5-7 Fig. 5-8

WaterLevel

Fig. 5-9 Fig. 5-10

Page 124: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 25

Interior Features

Fig. 5-7 The operating water level of the dishwasher is at approximately the upper edge of the filter basket.

Fig. 5-8 The Lower Spray Arm is press fit into the Feeder Tube Socket.

To remove the Arm, grasp the Arm Hub and pull up until the Arm disengages from the Socket.

The Arm or Arm Socket can now be checked for debris.

Fig. 5-9 The Filter Basket is removed by turning it ninety degrees counter-clockwise.

Fig. 5-10 Then lift it out for cleaning.

The Filter is a fine mesh of stainless steel and should be inspected and cleaned at leastonce a month.

Fig. 5-11 With the Filter Basket removed, the filter screen can then be lifted out.

The Filter Screen is also made of stainless steel, and was designed with rolled ends toeliminate sharp edges. It too should be inspected and cleaned at least once a month.

Fig. 5-12 With the Filter Screens removed you now have access to the sump area.

The Sump has a Drain Intake on the left, and the Circulation Pump Intake on the right.

A removable cover, item 1, hides the Drain Impeller. To remove the cover, remove the singleT-20 Torx screw and then lift the cover off. You may now examine the Impeller for anyobstructions.

The Feeder Tube Assembly allows water to flow to the Lower, then Upper Spray Arms andthen to the Top Sprayer Head. It is replaced as a complete assembly by first removing thetwo T-20 Torx screws, item 2, at its base.

Then bring the tube up and off the Sump Housing, and remove it from the retaining cliplocated on the rear wall.

Page 125: Bosch Dishwasher SHU Complete Troubleshooting Guide

26 H

Fig. 6-3

Fig. 6-2

Detergent / Rinse-Agent Dispenser

1

2

Located on the Inner Door is the Detergent / RinseAgent Dispenser, Fig. 6-1.

The Dispenser Housing is one assembly containingthree individual components.

Rinse Agent Dispenser.

Detergent Cup.

Steam Vent.

Note: Mechanical operation and removal of theDispenser is shown in Section 4.

To fill or adjust the Rinse Agent Dispenser, openthe Rinse Agent Door by pulling up on the DoorLatch.

The Dosage Meter, item 1, is now visible. TheDosage Meter allows you to adjust the amount ofRinse Agent dispensed into the rinse stage of thecycle. The factory setting is three.

There is also an eyepiece, item 2, that provides avisual indication as to the amount of Rinse Agentremaining in the Dispenser.

Fig. 6-1

Fig. 6-4

2

1

To the right of the Rinse Agent Dispenser is theDetergent Cup, item 1.

Once detergent has been loaded into the cup, slidethe Detergent Door, item 2, closed.

When the door is fully closed press down on thedoor end to lock it.

A white Locking Lever, item 1, will then extend.Once closed, the detergent door may be releasedby pressing in on the Locking Lever.

With the Detergent Door closed the Steam Vent isnow visible, item 2.

During the drying stage of the cycle, steam isdrawn through the vent and collects in aCondensation Tube.

2

1

1

2

From Bill Lusk
This vented dispenser assembly (part # 263088) was used on indexes UC/06, UC/07 (SHV), UC/10 & UC/11 with unvented tanks. The vented tank (new condensation tube) index UC/12 uses an unvented dispenser assembly (part # 265837).
From Bill Lusk
This condensation tube (used for indexes UC/06, UC/07 (SHV), UC/10 & UC/11) is located in the door -- it doesn't connect to the tank like for UC/12 index models.
Page 126: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 27

Washability / Drying

WASHABILITY

There are four factors that play a critical role in Washability: Time, Temperature, Water and Detergent. Itis important when attempting to determine the cause of a Washability complaint that all four factors beconsidered and tested.

Time: The duration of the program is accurate (see cycle chart).

Temperature: The wash and rinse temperatures are within the desired range (see cycle chart).

Water: The unit is filling with the correct amount of water (Section 3, Fig.5-7)

Detergent: The detergent is fresh, and not being used in excessive amounts.

Please note: Other factors such as clean filters, a properly routed drain hose, water hardness andquality, as well as loading of items will also effect Washability.

DRYING

As part of an energy saving design Bosch Dishwashers do not activate the Heating Element during theDrying cycle. Instead, the dishwasher utilizes a rinse temperature of up to 161° Fahrenheit, and theaddition of Rinse Agent to achieve a quality drying result.

HOW THIS SYSTEM FUNCTIONS:

During the rinse cycle water is heated to 161° Fahrenheit, this heat is transferred to the items inthe dishwasher where it is absorb and stored.

During the drying portion of the cycle all dishwasher items will then radiate the stored heat, thusevaporating any water that has collected on the items surface, burning it off and converting theliquid into steam.

This process of “flash drying” is assisted by the release of Rinse Agent into the rinse water. RinseAgent is a water softener that inhibits water from collecting or pooling, allowing it to be easilyevaporated.

The remaining steam is vented from the interior through the Steam Vent (Fig. 6-4, item 2) where itis then collected by, and drained from the Condensation Tube (Section 4, Fig. 7-5, item 2).

Service note: When confronted with a drying complaint, make sure the Rinse Agent Dispenser is full,and the rinse water temperature is within the desired range. Please remember that theunit will not dry without Rinse Agent.

Page 127: Bosch Dishwasher SHU Complete Troubleshooting Guide

28 H

Service Reminder

From this point in the manual only the technical features and components of theSHU 5312 will be demonstrated.

However, due to the overwhelming similarities between the model SHU 5312 and theremaining Bosch Dishwasher line, you will be able to easily diagnose and repair allcurrent Bosch model SHU, SHI and SHV Dishwashers.

Page 128: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 29

Section 4

Description Page

Outer Door Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Door Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Dispenser Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Dispenser Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Fascia Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 – 35

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Page 129: Bosch Dishwasher SHU Complete Troubleshooting Guide

30 H

Outer Door Removal

Fig. 7-1 Fig. 7-2

Fig. 7-4

Fig. 7-3

To remove the Outer Door, open the door and remove thesix T-20 Torx screws located three on each side of the InnerStainless Door, Fig. 7-1.

Return the door back to its upright position, and bring thebottom of the Door Panel out toward you, then slide the top ofthe panel down and out from under the Facia Panel, Fig. 7-2.

As the Outer Door is being removed, the left or right DoorGuards may shift or fall out of place, Fig. 7-3.

To reposition them, slide them back in over the hinge, Fig. 7-4,lining up the door guard square tab with the hinge leversquare notch.

Please note: Door Guards must be in place beforereinstalling the Door Panel. Door Guards arenot used on SHI or SHV models.

Page 130: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 31

Door Compoments

4

9 8

4

9

1

7

6

2

3

5

Fig. 7-5

Once the Outer Door has been removed the following components become visible.

1. Dispenser Assembly2. Condensation Tube3. Upper Wiring Harness4. Door Guards5. Door Seal6. Bituminious Insulation7. Cloth Fiber Insulation

Also note the Toe Kick, item 8, and the Toe Kick Mounting Screws, item 9.

From Bill Lusk
This covers index #'s UC/06, UC/10 & UC/11 with condensation tube in door. Index # UC/12 has condensation tube entering right side of tank.
Page 131: Bosch Dishwasher SHU Complete Troubleshooting Guide

32 H

Dispenser Operation

Fig. 8-1 Fig. 8-2

Fig. 8-3 Fig. 8-4

2

1

1

When the Dispenser requires Rinse Agent a Magnetic Float, Fig. 8-3, item 1, will lower and draw thecontacts of a Reed Switch, Fig. 8-3, item 2, together. This completes the circuit, and activates the RefillRinse Agent LED located on the Facia Panel.

To remove the Reed Switch, first disconnect the Wiring Connector. Now, using a small screwdriverpush in on the Reed Switch Mounting Tab, Fig. 8-3.

As you push in on the mounting tab, use a needle-nose pliers to bring the switch down and out from theDispenser, Fig. 8-4.

The Dispenser Assembly operates via a PTCActuator (wax motor), item 1.

When voltage is applied to the Actuator itadvances a Combination Lever, item 2.

The Combination Lever allows the Soap Door to open,and later in the cycle dispenses the Rinse Agent.

To remove the Actuator, first disconnect theWiring Connector. Then, using a smallscrewdriver, release the locking tab….

…and bring the Actuator out from the Dispenser.

Please note: The Combination Lever cannot bereplaced individually, but only aspart of a new Dispenser Assembly.

2

Page 132: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 33

Dispenser Removal

Fig. 8-5 Fig. 8-6

If required, the Dispenser Assembly can be replaced as a complete unit.

TO REMOVE:

First remove the:

Upper Rack (Section 3, Fig. 4-3).

Wiring Connectors for the PTC Actuator, Reed Switch and Condensation Tube.

The Condensation Tube is inserted into the right side of the Dispenser with a gasketseal, and press fit along the right side of the Inner Stainless Steel Door.

To remove, first remove any securing tape or wire ties for both the Condensation Tubeand Upper Wiring Harness. Then, disengage the tube from the door by pulling it towardyou, and sliding the tube out from the Dispenser.

Now, using a broad tipped regular screwdriver spread the top and bottom metal positioningstrips away from the Dispenser, Fig. 8-5.

Then apply light pressure to the Dispenser, and break the seal between it and the InnerStainless Steel Door, Fig. 8-6.

TO INSTALL:

Clean the inner portion of the stainless steel door where the Dispenser Gasket will seat. Thenbend the positioning strips back into place, straightening them if necessary.

Now, insert the new Dispenser making sure the positioning strips fit snugly against the DispenserBody. The Dispenser Gasket will make a watertight seal so caulk or sealant is not required.

Replace the Condensation Tube, Wiring Connectors and Upper Rack.

BSH BSH
This applies to index #'s UC/06, UC/10 & UC/11. Index UC/12 has a different condensation tube assembly (connected to the tank).
BSH BSH
This applies to index #'s UC/06, UC/07 (SHV), UC/10 & UC/11. Index UC/12 has a different condensation tube assembly (connected to the tank).
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34 H

Fascia Assembly

Fig. 9-2 Fig. 9-3

Fig. 9-1

IMPORTANT SERVICE NOTE:

The Fascia Assembly cannot beremoved unless the Outer Door isremoved first.

See section 4, Fig. 7-1.

FASCIA ASSEMBLY REMOVAL:

After removing the Outer Door, removethe six T-20 Torx screws securing theFascia Assembly to the Inner Stainlessdoor, Fig. 9-1.

With the screws removed, bring the FasciaAssembly down cradling it so as not to scratchthe Fascia Console.

Now remove the Wiring Connectors by pressing inon the locking tabs of each connector, then slidingthe connector up and off from the Control Module.

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H 35

Fascia Assembly

Fig. 9-5

Fig. 9-4

Fig. 9-6

Fig. 9-7

12 3

1 2

With the Fascia Assembly removed fromthe unit, it can be further separated intotwo assemblies.

To separate, release the four lockingtabs and bring the Fascia Frame up fromthe Fascia Console, Fig. 9-4.

The Fascia Frame houses threecomponents:

Item 1,On/Off Switch.Item 2,Door Latch Assembly.Item 3,Control Module.

Note: The Fascia Console or ProgramButtons can be replaced at thistime.

ON/OFF SWITCH REMOVAL:

Bend the single tab up, item 1.

Then slide the switch up and out fromthe frame, and remove the LockingLever, item 2.

Note: The Locking Lever, item 2,switches the unit off when thedoor is opened during operation.

DOOR LATCH ASSEMBLY REMOVAL:

Bend the two tabs up and slide theLatch down.

CONTROL MODULE REMOVAL:

Press in on the three locking tabs andbring the Control Module out from theConsole Frame.

Note: Always reset the new Control Moduleby pressing the appropriatecancellation buttons, see Section 2.

Page 135: Bosch Dishwasher SHU Complete Troubleshooting Guide

36 H

Notes

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H 37

Section 5Description Page

Base Components – Front Accessible: Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . 38Circulation Motor Capacitor . . . . . . . . . . . . . . . . . . . 38Leveling Legs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Water Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Drain Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 — 41

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

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38 H

Base Components – Front Accessible

Fig. 10-2

Fig. 10-1

7=

6 5 4

8

3 31

2 9 =

1

The electrical connection, item 1, is a threewire hook-up that is secured with wire-nuts.

The color code is as follows:

Black = HotWhite = NeutralGreen = Ground

The Circulation Motor Capacitor, item 2, isa 10uf-Start/Run Capacitor held to theCirculation Motor with a single 13mm nut.The Capacitor can be replaced as aseparate component without removing theCirculation Motor.

Service note: To gain access to the Front Accessible LowerComponents remove the Toe Kick. Also, forbetter visibility it is strongly recommended thatthe Outer Door be removed as well.

The Front Accessible Lower Components consist of the following items.

1. Electrical Connection.2. Circulation Motor Capacitor.3. Front Leveling Legs.4. Model and Serial number tag.5. Rear Leveling Leg adjustment screw.6. Water Solenoid Valve.7. Access Panel.8. Drain Motor.9. Circulation Motor.

The Circulation Motor cannot be replaced from thefront, but is accessible for voltage or wiring testing.

10. Door Spring Adjustment Screws.The adjustment can only be made when an accessorydoor panel is added to the unit. Turning the screwclockwise will balance the additional weight of theadded panel.

2

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H 39

Base Components – Front Accessible

Fig. 10-3 Fig. 10-4

Fig. 10-5 Fig. 10-6

2

1

The front Leveling Legs can be adjusted by inserting aregular tipped screwdriver into the foot slot andturning the leg in the desired direction.

The Rear Leg Adjustment Screw, item 1, allows thesingle Rear Leveling Leg to be adjusted from the frontof the unit. Turning the screw clockwise will extendthe leg, and counter-clockwise retracts it.

For convenience an additional Serial Number Tag,item 2, is located on the Base.

To replace the Water Solenoid Valve, first remove thetwo T-20 Torx valve mounting screws.

Then bring the Water Valve out from the Base, anddisconnect the water line by loosening the Water LineClamp (arrow) and removing the wiring leads.

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40 H

Base Components – Front Accessible

Fig. 10-7

Fig. 10-8

1

1 2

Service note: To provide the requiredaccess that will allow theDrain Motor to be replaced,the Lower Access Panelmust be removed, and aspreviously mentioned theOuter Door Panel shouldalso be removed.

As demonstrated in Figs. 10-7 and 10-8,with the Lower Access Panel removedyou gain all the space required to replacethe Drain Motor, Fig. 10-8, item 1, as wellas allowing better visibility to theCirculation Motor Wiring, Fig.10-8, item 2,rear components, wiring and hoses.

To remove the Lower Access Panel, Fig.10-7, item 1, remove the two T-20 Torxscrews located in the left and rightcorners of the panel.

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H 41

Base Components – Front Accessible

Fig. 10-9 Fig. 10-10

Fig. 10-11 Fig. 10-12 Fig. 10-13

1 2

Cut Away View

3

1 2

A

B

To remove the Drain Motor, item 1, first remove theSump Fill Hose, item 2, by pulling it out from theSump and side inlet connections (see Fig. 10-10)

This cut away view shows:Item 1, Drain Motor.Item 2, Drain Motor Locking Tab.Item 3, the Sump Fill Hose and its two

connection points A and B.

Next, remove the wiringconnectors and then whilepulling back on the Locking Tab,turn the Drain Motor clockwise.

Continue turning the Drain Motorclockwise until it reaches the twoo’clock stop position. Thenbring the motor out from theSump.

The Drain Motor is mounted tothe Sump using a slot and tab fit.To install the Drain Motor, insert itback into the Sump at the twoo’clock position making sure thatall three slots and tabs line up,then turn counter-clockwise untilsecure and the Locking Tab locks.

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42 H

Service Reminder

From this point forward, all service procedures demonstrated in the remainder of thisrepair manual, will require the dishwasher to be disconnected and removed from thecabinet for servicing.

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H 43

Section 6

Description Page

Left Side Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Left Side Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Water Inlet / Discharge System – Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 – 47

Water Inlet / Discharge System – Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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44 H

Left Side Access

Fig. 11-2 Fig. 11-3

Fig. 11-1

AB

LEFT SIDE PANEL REMOVAL:

Remove the two T-20 Torx screws locatedon the top and bottom of the Left Trim Strip,Fig. 11-1, and then slide the Trim Strip upand off the unit.

Figs. 11-2 and 11-3

The Side Panel is press fit onto the Frontand Rear Corner Blocks of the dishwasher.To remove the panel, gently lift up on thefront corner disengaging it from the FrontCorner Block, arrow A. Then bring thepanels back corner off the rear block whilemoving the panel toward the rear of thedishwasher, arrow B.

Bring the panel out from the side of the unitabout forty-five degrees, and then lift it outfrom the Base Lip.

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H 45

Left Side Components

Fig. 11-4

2

3

5

67

4

11

8

With the Left Side Panel removed you now have access to the following components:

1. Corner Blocks.2. Cloth Fiber Insulation Panel.3. Drain Hoses.4. Water Chamber.5. Inlet Water Line.6. Water Level Housing Assembly.7. Sump Fill Hose.8. Left Hinge.

Page 145: Bosch Dishwasher SHU Complete Troubleshooting Guide

46 H

Fig. 12-2 Fig. 12-3 Fig. 12-4

Normal Fill Over Fill Base Float

Water Inlet / Discharge System – Operation

Fig. 12-1

1 2 3

4

5

8

6

7

9

Page 146: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 47

Water Inlet / Discharge System – Operation

WATER SYSTEM OPERATION: Fig. 12-1 is a close up view of the complete Water Systems.

FILLING

NORMAL OPERATION (Fig. 12-2)

Fresh water is brought in by the Water Valve and through the Inlet Water Line, item 3. Theincoming water is then directed into the Water Level Housing Assembly, item 4, and then on to theSump via the Sump Fill Hose, item 8.

As the unit fills with water the Diaphragm on the Water Level Housing Assembly expands due tothe pressure of air forced up by the incoming water. When the correct water level is reached theDiaphragm moves the Switch Lever, which in turn closes the Water Level Switch.

When the Water Level Switch closes the Water Valve shuts and the Circulation Motor is activated,and the program advances.

Note: Once the Circulation Motor is activated the water level will drop slightly, the unit thencalls for a small amount of additional water to be added.

OVER FILL (Fig. 12-3)

As a safety feature, if the Diaphragm were to malfunction the water level would rise and activatethe Safety Float, item 5. As the Safety Float rises it in turn closes the Float Switch, item 6. Whenthe Float Switch closes it activates the Drain Motor.

Service tip: If the dishwasher repeatedly fills and drains the cause is most likely a faultyDiaphragm.

BASE FLOAT (Fig. 12-4)

As an additional safety feature, if the Base were to fill with water due to a hose or pump leak theBase Float, item 9, will rise and via a Float Lever and Pushrod, item 8, would close the FloatSwitch, which in turn activates the Drain Motor.

Service tip: If there is water in the base the Drain Motor will run continually, but will not drainwater from the base.

“F” CODE

Dishwashers with a Countdown Display will show an “F” in the display window when a filling faultoccurs. Filling faults can be: Water in the base; overfill; and under or no fill.

Live Dealer Display Models with “F” codes:

Since display models are hand filled, achieving the correct water level is difficult, (see Section 3,Fig. 5-7) so the unit will perceive a filling fault and display the “F” code. This is normal, do notattempt a repair.

DRAINING

When the Drain Motor is activated gray water flows from the Sump through the Sump Drain Hose,item 2, around the Water Chamber and out through the Main Drain Line, item 1.

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48 H

Water Inlet / Discharge System – Removal

Fig. 12-7 Fig. 12-8

Fig. 12-9 Fig. 12-10

The Water Level Switch and Diaphragm arereplaced as one assembly. To replace, bend thesmall retaining tab out away from the assembly.

Then remove the wiring connector and slide theassembly up and out from the Water Level Housing.

The Float Switch, item 1, is a press fit and easilyremoved as an individual component.

To replace either Drain Hose, first remove theDrain Hose retaining clip.

Then bring the hose down and out from the WaterChamber. When re-installing make sure the hose issnug, and the retaining clip is back in place.

1

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H 49

Section 7

Description Page

Right Side Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Right Side Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

NTC Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

NTC Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 – 57

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

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50 H

Right Side Access

Fig. 13-1 Fig. 13-2

RIGHT SIDE PANEL REMOVAL:

Remove the two T-20 Torx screws located on the top and bottom of the Left Trim Strip, Fig. 13-1,and then slide the Trim Strip up and off the unit.

To remove the panel, refer to Section 6, Figs. 11-2 and 11-3.

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H 51

Right Side Components

Fig. 13-3

1

2

4

5

3

With the Right Side Panel removed, you now have access to the following components.

1. Circulation Pump / Motor.2. Base Wiring Connectors.3. Flow Switch.4. Heater Assembly.5. NTC.

COMPONENT EXPLANATION:

Circulation Pump / Motor.

The Circulation Pump / Motor can be replaced from the right side by following the same accessprocedures for removal of the NTC outlined in the remainder of this section, and then by followingthe steps in Section 8, Figs. 16-2 through 16-7, for the Circulation Pump / Motor removal.

Service Note: Section 8, also gives and alternative removal method for the Circulation Pump / Motor.

Base Wiring Connectors.

The Base Wiring Connectors allow the Upper Wiring Harness to mate with the Base Wiring Harness.

Flow Switch.

Located between the two heater terminals is the Flow Switch. In the event that water does not flowacross the Heating Element, the Flow Switch disables the element. To remove the Flow Switch,bring the bottom of the switch out from its base, unhook the side tabs, and then lift the switch out.

Heater Assembly.

The Heater Assembly cannot be replaced from the side, but is accessible for continuity testing.Replacement of the Heater Assembly is outlined in Section 8, Figs. 16-8 through 16-12.

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52 H

NTC Operation

Fig. 14-1

Located on top of the Heater Assembly is the NTC (Negative Temperature Coefficient), Fig. 14-1. TheNTC uses resistance to control wash and rinse water temperature and is connected with two green leads.

As water temperature increases, the NTC records the decrease in resistance. The Control Unit LogicBoard measures this resistance change and allows the program to advance once the correcttemperature (resistance level) is reached.

Service note: The SHU 30** and SHU 40** models do not use an NTC, but utilize a standard, normallyopen thermostat (bi-metal).

Also combined within the NTC (or standard thermostat) is a High Limit Safety Thermostat, connectedwith red leads. The normally closed high limit is set to 185° Fahrenheit and is self-resetting.

Service tip: The NTC can be checked without removing the dishwasher by measuring its resistance atthe Control Unit. Using the appropriate wiring diagram, locate the two NTC leads. Theresistance at room temperature should be approximately 55k Ohms.

An extremely high, low or no Ohm reading will usually indicate a faulty NTC.

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H 53

NTC Removal

Fig. 14-2

Fig. 14-3 Fig. 14-4

To replace the NTC, first remove the Right SidePanel, Outer Door and Toe Kick, Fig. 14-2.

Then, remove the two Front Base MountingScrews, Fig. 14-3.

And the single Rear Base Mounting Screw,Fig. 14-4.

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54 H

NTC Removal

Fig. 14-7

Fig. 14-6

Fig. 14-5

Next, remove the Hinge Cover…

and, unhook the Pulley Arm from the Hinge bylifting it up…

and then off the Hinge.

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H 55

NTC Removal

Now, from inside the dishwasher remove theLower Spray Arm, Filter Basket and Screen, thenremove the two screws that attach the FeederTube to the Sump, item 1. And the two SumpClamps, item 2.

With the block in place you now have the requiredaccess to replace the NTC.

Service note: The Circulation Pump / Motor canalso be replaced at this time, seeSection 8.

With all steps complete, bring the Tank up fromthe Base and insert a block in the rear of the unitbetween the Tank and the Base.

1

2

Fig. 14-10

Fig. 14-9

Fig. 14-8

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56 H

NTC Removal

Fig. 14-11 Fig. 14-12

As demonstrated in Figs. 14-11 and 14-12, raising the Tank provides the necessary access spacerequired to remove either the NTC or the Circulation Pump / Motor.

Service note: When re-seating the Tank make sure to check that it is inserted squarely back into thepump and seated properly.

Page 156: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 57

NTC Removal

Fig. 14-15

Fig. 14-13

Fig. 14-14

2 1

Cut Away View

1

2

The NTC is held in place by two locking tabs,items 1 and 2.

To remove the NTC from the Heater Assembly,unhook the front tab, item 1, and lift the NTC upslightly on that side, holding the tab open as you lift.

Once the NTC has been removed make sure toretrieve the NTC O-ring from the Heater Assemblyif it is not on the NTC when it’s removed.

Service tip: When installing the NTC, apply waterto the O-ring so it will seat easier.

To avoid leaks, always make surethe NTC is secure and insertedcompletely into the HeaterAssembly.

Then unhook the rear tab, item 2, holding it open,while you slide the NTC up and out from theHeater Assembly.

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58 H

Notes

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H 59

Section 8

Description Page

Tank Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 – 62

Base Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Circulation Pump / Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Circulation Pump / Motor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Heater Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Heater Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Aqua Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Door Spring Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

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60 H

Tank Removal

Fig. 15-1 Fig. 15-2

Fig. 15-3

1

2

In order to gain full access to the CirculationPump / Motor, Heater Assembly and AquaSensor the Tank must be removed.

To remove the Tank, start by removing the OuterDoor, Left and Right Side Panels, and Toe Kick,leaving the unit as shown in Fig. 15-1.

Next, disconnect the Upper Wiring Harness fromthe Control Unit and On/Off Switch, and thenbring the harness off its mounting point on theCondensation Tube, Fig. 15-2.

Now from inside the dishwasher remove theLower Spray Arm, Filter Basket and Screen, thenremove the two screws that attach the FeederTube to the Sump, item 1. And the two SumpClamps, item 2.

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H 61

Tank Removal

Fig. 15-6

Fig. 15-4

Fig. 15-5

Then on both the left and right sides, remove theHinge Covers…

and then off the Hinges.

and unhook the Pulley Arms from both Hinges bylifting them up…

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62 H

Tank Removal

Fig. 15-9

Fig. 15-7 Fig. 15-8

2

1

1

Fig. 15-7Now on both the left and right sides removethe T-20 Torx Tank Mounting Screws, item 1,and the Door Hinge Pivot tab, item 2.

Fig. 15-8To remove the Door Hinge Pivot Tab, insertyour T-20 Torx bit into the Tab and bring thescrewdriver down releasing the tab.

Service note: The tab is a press fit, and will simplysnap into position when replaced.

Fig. 15-9

With both Tank Mounting Screws and DoorHinge Pivot Tabs removed bring the InnerDoor up and off the unit. The Lower DoorSeal, item 1, will pull away as you removethe door.

Set the door aside.

Service note: The Door Seal is a press fit alongthe bottom lip of the tank. To avoidleaking, make sure the Door Seal iscorrectly inserted back along thetank lip when replaced.

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H 63

Base Components

Fig. 16-1

4

3

2 1

The Tank can now be removed from the Base.

Service note: Once removed, lay the Tank on its back so as not to damage the tank bottom. When re-seating the Tank make sure to check that it’s inserted squarely back into the Sump andseated properly.

With the Tank removed you now have access to the following components:

1. Circulation Motor2. Circulation Pump3. Heater Assembly4. Aqua Sensor

Service reminder: As previously mentioned in Section 7, the Circulation Pump / Motor can also bereplaced from the right side without removing the Tank. However, the additionalvisibility and access the Tank removal method allows can be a greater benefit forthis repair.

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64 H

2

1

Circulation Pump / Motor Removal

Fig. 16-4

Fig. 16-2 Fig. 16-3

Fig. 16-5

324

1

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H 65

Circulation Pump / Motor Assembly

Fig. 16-6 Fig. 16-7

CIRCULATION PUMP / MOTOR REMOVAL:

Disconnect the four wire leads, then grasp the Circulation Motor and turn clockwise a quarter turn untilthe Motor stops, Fig. 16-2. Now, remove the Motor / Rear Pump Assembly from the Front PumpHousing, Fig. 16-3.

Note: The Front Pump Housing remains in place when the Motor is removed, Fig.16-3, item 1.

With the Motor / Rear Pump Assembly removed from the unit, separate the Motor from the Rear PumpAssembly. To do so, first remove the Impeller by placing a block in the rear of the Motor and then turningthe Impeller counter-clockwise, then Fig 16-4.

The Rear Pump Assembly consists of four components, Fig. 16-5:

1. Rear Pump Housing. 3. Impeller.2. Main Pump Seal. 4. Impeller Seal.

Each component can be replaced as an individual item.

TO INSTALL:

First, locate the Key Square on the Front Pump Housing, Fig. 16-6. Next, locate the Key Square CutOut on the Rear Pump Housing, Fig. 16-3, item 2.

When replacing the Pump / Motor make sure to line up the Key Square with the Key Square Cut Out.Then bring the two pump halves together in the position shown in Fig. 16-2, and turn the Motorclockwise until it stops, see Fig. 16-7.

Service note: The Impeller Seal Spring is compressed when the two halves of the Pump Assembly arebrought together. This will take a little force, so make sure to have a good grip on theSump as you compress the spring.

Now, reattach the wiring leads, test and check for leaks.

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66 H

Drain Motor

Lower Spray Arm

Upper Spray Arm

Aqua SensorNTC

Flow Switch

Circulation Motor / Pump

Flow Through Heater

Impeller Cover

Heater Assembly Removal

Fig. 16-8 Fig. 16-9

Fig. 16-10

3

1 4

2

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H 67

Heater Assembly

Fig. 16-11 Fig. 16-12

1

2 3

4

6

7

The Heater Assembly, Fig. 16-8 is a flow through design, taking water in from the Circulation Pump andthen sending it out the two discharge outlets to the Upper and Lower Spray Arms, Fig. 16-10.

HEATER ASSEMBLY REMOVAL:

See Fig. 16-9, first remove all wiring leads and the two securing screws, item 1.

Now, release the Heater Assembly Locking Tab, item 2, and while holding the tab open bring the HeaterAssembly up on the left side, disengaging the heaters two discharge outlets from the Sump, item 3, andthen out from the Circulation Pump Connection, item 4.

Heater Assembly Components, Fig. 16-11.

1. Intake from Circulation Pump. 5. Locking Tab2. Discharge to Lower Spray Arm. 6. NTC Socket3. Discharge to Upper Spray Arm. 7. Flow Switch4. Aqua Sensor (if equipped).

TO INSTALL:

Slide the Heater Assembly into the Circulation Pump Connection first, then bring the Heater downand seat the two outlet gaskets back into the Sump. Make sure all three gaskets are secure andthe locking tab is in place. Then replace the two screws and wiring connections.

Top Rack Actuator, Fig. 16-12.

Top Rack Actuator is used to activate the Top Rack Only wash on models equipped with thisfeature. When activated, the Top Rack Actuator diverts all water flow to the Upper Spray Arm.

To remove the Actuator, remove the wire connector, and then pry the Actuator out from its housing.When installing, make sure the Actuator’s arm is properly inserted back into the Control Gate.

5

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68 H

Aqua Sensor

Fig. 16-13 Fig. 16-14

The Aqua Sensor turbidity measuring device, Fig. 16-13, which is available only on select models,evaluates the pre-wash water using a beam of light and a pick-up sensor.

If the beam passes easily through the pre-wash water then no additional wash water is added. If thebeam cannot pass through, then the pre-wash water is drained and a fresh fill is added for the mainwash cycle.

To replace the sensor, Fig. 16-14, slide it out from its housing located on the Heater Assembly.

Service note: Since the Aqua Sensor has no effect on washability, it should never be replaced. Only if aleak were to occur should service be performed on this component.

Page 168: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 69

Door Spring Removal

Fig. 16-18

Fig. 16-15

Fig. 16-16

Fig. 16-17

The Door Springs are located on thebottom of the Base, Fig. 16-15, andoperate via a Spring Cable and Reelthat counter balances the weight ofthe Outer Door, Fig. 16-16.

If a Door Panel Kit is applied to thedishwasher, the factory springs must bereplaced with the heavy duty versionthat is provided with the panel kit.

TO REPLACE THE SPRINGS:

Lay the dishwasher on its back,being careful not to damage theDrain Hose. Then using a smallscrewdriver, remove the DoorSprings by prying the Spring Plateout from the Base, Fig. 16-17.

Then remove the Spring Cableby unhooking it from the Spring,Fig. 16-18.

Page 169: Bosch Dishwasher SHU Complete Troubleshooting Guide

70 H

Notes

Page 170: Bosch Dishwasher SHU Complete Troubleshooting Guide

H 71

Section 9

Description Page

Wiring Diagrams / Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (see Tech Manual)

Test Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(see Test Programs)

Page 171: Bosch Dishwasher SHU Complete Troubleshooting Guide

BSH Home Appliances5551 McFadden AvenueHuntington Beach, CA 92649

Page 172: Bosch Dishwasher SHU Complete Troubleshooting Guide

1

Thermador Dishwasher SeriesModels DWI246, DW246,

DW245, DW244.Flexibility, Cleanability plus

Quiet Operation

Page 173: Bosch Dishwasher SHU Complete Troubleshooting Guide

2

FEATURES

• Soil Sensor– Except Model DW244

• Upper Plate Rack• Lower Pots & Pans

Rack• Heated Water

Chamber• Quiet Operation• Stainless Steel Tank

• Triple FiltrationSystem

• Cycle StatusIndicator Bar

• Rinse AgentIndicator Light

• Cycle Delay Function• Condensation Air

Drying System

Page 174: Bosch Dishwasher SHU Complete Troubleshooting Guide

3

To Interrupt or Reset a Cycle

To interrupt a cycle:

Simply depress theON/OFF button tostop the operation

To reset a cycle:

With the cycle operating,press HEAVY WASHand LIGHT WASH atthe same time for 3seconds. The cyclestatus bar willprogress to the end.

Page 175: Bosch Dishwasher SHU Complete Troubleshooting Guide

4

To change cycle selection

Simply depress the button of the cycle desiredtwo times. The light above the cycle willthen become illuminated to show that it hasbeen selected.

Page 176: Bosch Dishwasher SHU Complete Troubleshooting Guide

5

Fill valve replacement

• Fill valve is accessedby removing toekickpanel.

• Remove two screwsholding fill valve inplace, electricalconnections, andremove fill hose.

• Reverse order toreplace.

Page 177: Bosch Dishwasher SHU Complete Troubleshooting Guide

6

Fill valve replacement

• Operates on 120VAC• Normal reading is

approximately 1000ohms.

• Read directly at valve.• If reading is abnormal,

replace valve.

Page 178: Bosch Dishwasher SHU Complete Troubleshooting Guide

7

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switchTemp.sensor Soil Sensor Jumper

Serviceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

Fill valve reads 1000 ohms between I2.4-4 and I2.1-3 with door switch closed. Itoperates on 120VAC. Note: voltagepresent whenever on-off switch closed.

Page 179: Bosch Dishwasher SHU Complete Troubleshooting Guide

8

Removal of outer door panel

• Remove 6 T-20screws in door panel

• Close door

Page 180: Bosch Dishwasher SHU Complete Troubleshooting Guide

9

Removal of outer door panel

• Tilt lower portionoutward and slidedown

• Stiffener blocks willfall out. Replace onhinge assembly priorto reassembly.

Page 181: Bosch Dishwasher SHU Complete Troubleshooting Guide

10

Drain pump replacement

• Drain tank sump withsponge or towel (toprevent spillage intolower sump).

• Remove toe panel andcover plate.

• Remove fill valve andsump hose.

• Hold tabs on motorand rotate CW.

Page 182: Bosch Dishwasher SHU Complete Troubleshooting Guide

11

Drain pump replacement

• Permanent magnetmotor.

• Operates on 120VAC.• Normal resistance

reading is 16 ohms.• Can be read directly at

motor.

Page 183: Bosch Dishwasher SHU Complete Troubleshooting Guide

12

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

Drain motor reads 16 ohms between I2.4-1 & I2.1-1 with door switch closed. Drainmotor operates on 120VAC.

Page 184: Bosch Dishwasher SHU Complete Troubleshooting Guide

13

Soap cup/Rinse aid dispenser

• Remove wireconnectors fromdispenser.

• Remove by bendingretainer tabs andpushing inward towardtank. Protect handwith towel as edgesare razor sharp.

Page 185: Bosch Dishwasher SHU Complete Troubleshooting Guide

14

Soap cup/Rinse aid dispenser

• The entire dispenserwill push intodishwasher tub.

• Replace from insidetaking care to positionO-ring seal and bendtabs to secure.

Page 186: Bosch Dishwasher SHU Complete Troubleshooting Guide

15

Troubleshooting dispenser

• Actuator operates on120VAC.

• Normal resistance is1600 ohms.

• First actuation openssoap cup andrepositions arm.

• Second actuationdispenses rinse aid.

Page 187: Bosch Dishwasher SHU Complete Troubleshooting Guide

16

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

Dispenser actuator (wax motor) reads 1600ohms between I2.2-1 & I2.2-2 and operates on120VAC.

Page 188: Bosch Dishwasher SHU Complete Troubleshooting Guide

17

Troubleshooting dispenser

• Reed switch activatesrinse aid fill light onlywhen empty.

• Normally open, willonly read continuitywhen rinse aiddispenser is empty.

Page 189: Bosch Dishwasher SHU Complete Troubleshooting Guide

18

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

Reed switch reads open between I2.6-1& I2.6-2 when rinse agent dispenser isfull, closes when empty.

Page 190: Bosch Dishwasher SHU Complete Troubleshooting Guide

19

HANDS ON

Page 191: Bosch Dishwasher SHU Complete Troubleshooting Guide

20

Access to control board/dispenser

• To access/removecontrol board andon/off switch, lowerdoor to horizontalposition, remove sixT-20 screws andcontrol panel will tiltdown.

Page 192: Bosch Dishwasher SHU Complete Troubleshooting Guide

21

Access to control board

• Remove 6 T-20screws.

• 2 are on side of doorliner, 4 facing upwards

• Lift door, tilt controlpanel up and outwardto remove.

Page 193: Bosch Dishwasher SHU Complete Troubleshooting Guide

22

Control board

• Slide control board uppast tabs to remove.

• Plugs are keyed andwill not fit in wrongposition.

• Component checks aredone from controlboard plugs.

Page 194: Bosch Dishwasher SHU Complete Troubleshooting Guide

23

Troubleshooting the controlmodule.

• Plugs to components are arranged on themodule as shown above.

• Voltage and resistance readings can be takenfrom the plugs.

Page 195: Bosch Dishwasher SHU Complete Troubleshooting Guide

24

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 NL1

2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

MODULE -- I2

I2.1…..3 pin wire connector I2.2…..2 pin wire connector

I2.4…..6 pin wire connector I2.5…..7 pin wire connector

I2.6…..2 pin wireconnector

I2.7…..2 pin wire connector

.6-2 .5-7 .5-6 5.3 5.2 5.1

.4-3 .4-4 .4-1 .7-2 .4-2

(two pins not used) (two pins not used)

Six multi-pin connectors

e6

Page 196: Bosch Dishwasher SHU Complete Troubleshooting Guide

25

Troubleshooting from thecontrol board

• Component checks aredone from controlboard plugs.

• Plugs are numberedfrom the left startingwith I2.1, I2.2, I2.4,I2.7, I2.6, and I2.5.

Page 197: Bosch Dishwasher SHU Complete Troubleshooting Guide

26

Troubleshooting thecontrol board

• I2.1 has 3 wires andcarries input fromdoor switch (120VAC)

• I2.2 has 2 wires andsends voltage to soapcup actuator(120VAC)

Page 198: Bosch Dishwasher SHU Complete Troubleshooting Guide

27

Troubleshooting from thecontrol board

• I2.4 has 4 wires andcontrols the following:

• I2.4-1 120VAC todrain motor.

• I2.4-2 120VAC tocirculation motor.

• I2.4-3 120VAC towater level switch.

• I2.4-4 provide neutralto activate fill valve.

Page 199: Bosch Dishwasher SHU Complete Troubleshooting Guide

28

Troubleshooting from thecontrol board

• I2.6 has 2 wires andmonitors reed switchto activate rinse agentlight.

Page 200: Bosch Dishwasher SHU Complete Troubleshooting Guide

29

Troubleshooting from thecontrol board

• I2.5 has 2 plugs. The2 wire plug (I2.5-6&I2.5-7) receivesinput from NTCsensor.

• The 3 wire plug is forthe soil sensor. (Notused on DW244models).

Page 201: Bosch Dishwasher SHU Complete Troubleshooting Guide

30

On/Off/Door switch

• Switches both neutraland hot side of linevoltage.

• Door switch is part ofon/off switch and isactivated by actuatorrod from door latch.

• Remove by bendingtab and sliding up.

Page 202: Bosch Dishwasher SHU Complete Troubleshooting Guide

31

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

On-Off switch switches neutral, 120VAC input,and 120VAC output from board. When closed,read 120VAC between I2.1-1 & I2.1-2, and I2.1-1 & I2.1-3. Door switch opens neutral (1-2) andthe On-Off switch contacts (3-4 & 5-6)..

Page 203: Bosch Dishwasher SHU Complete Troubleshooting Guide

32

Door gasket/seal

• Door gasket /seal isinserted into channelaround top and sidesof tank opening.

• It is a press fit, noadditional sealant isused.

Page 204: Bosch Dishwasher SHU Complete Troubleshooting Guide

33

Side panel removal

• Remove T-20 screwsholding side panelthrough holes in fillertrims.

• Slide filler strips upand remove.

Page 205: Bosch Dishwasher SHU Complete Troubleshooting Guide

34

Side panel removal

• Pull panel outwardfrom top edge.

• Lift and remove .• Replace by inserting

bottom edge, andpushing top edge inand down.

• Start T-20 screws andslide filler strips inplace, tighten screws.

Page 206: Bosch Dishwasher SHU Complete Troubleshooting Guide

35

Water level and float switch

• Fill valve opens, waterfills chamber and tank,activating water levelswitch.

• When switch trips firsttime, circulation motorstarts, fill continues.

• When water levelswitch trips secondtime fill stops.

Page 207: Bosch Dishwasher SHU Complete Troubleshooting Guide

36

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

Water level switch reads open betweenI2.4-3 & I2.1-3 when idle. It conveys120VAC to control board when activated.

Page 208: Bosch Dishwasher SHU Complete Troubleshooting Guide

37

Fill and float switch

• Float switch is locatedto the right or forwardof the fill/flow switch.

• The float switch willactivate the drainpump for two reasons:– Overfill condition– Leakage into the

sump

Page 209: Bosch Dishwasher SHU Complete Troubleshooting Guide

38

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

Overfill or leakage into sump causes floatswitch to transfer 120VAC to drain motorand disconnects 120VAC to fill valve.

Page 210: Bosch Dishwasher SHU Complete Troubleshooting Guide

39

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor Jumper

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

Check for 120V between .1-1 & .1-2; .1-1 & .1-3;.1-1 & 6 on On/Off Sw; .1-1 & hot Water Valve Terminal

Check for 120V between .1-2 & neutral Water Valve Terminal;.1-2 & .4-4

No Water Fill….diagnosed at control console

Page 211: Bosch Dishwasher SHU Complete Troubleshooting Guide

40

HANDS ON

Page 212: Bosch Dishwasher SHU Complete Troubleshooting Guide

41

Door removal

• Unplug all electricalconnections fromdispenser.

• Remove condenserchannel.

• Remove control paneland lay on floor.

Page 213: Bosch Dishwasher SHU Complete Troubleshooting Guide

42

Door removal

• Remove retainer clipswith smallscrewdriver.

• Detach lip seal frombetween tank and doorbottom.

• Remove spring cable.• Lift door up and off

hinge pivot.

Page 214: Bosch Dishwasher SHU Complete Troubleshooting Guide

43

Door springs

• Door springs aremounted in a channelin the molded base.

• Replacement requiresthe removal of themachine from installedposition.

Page 215: Bosch Dishwasher SHU Complete Troubleshooting Guide

44

Door spring replacement

• Remove cable fromhinge on door.

• Pry spring retainerfrom base channel.

• Unhook cable fromspring.

• Replace in oppositeorder.

Page 216: Bosch Dishwasher SHU Complete Troubleshooting Guide

45

Cable replacement

• Remove cable fromdoor hinge.

• Remove screw holdinghinge bracket to tank.

• Remove 2 screwsholding hinge bracketto base.

Page 217: Bosch Dishwasher SHU Complete Troubleshooting Guide

46

Cable replacement

• Lift hinge mount outof base, rotate cableroller to release fromhinge mount.

• Insert new cable/rollerassembly, reinsert intobase, and replacescrews.

• Reattach cable to doorhinge.

Page 218: Bosch Dishwasher SHU Complete Troubleshooting Guide

47

Drain pump cleanout

• Remove coarse filter,fine filter, and washarm.

• Slide retainer clipaside, lift and remove.

• Remove any foreignmaterial from sump.

• Reassemble in reverseorder.

Page 219: Bosch Dishwasher SHU Complete Troubleshooting Guide

48

Drain check valve

• Remove coarse filter,fine filter, drain pumpcleanout cover.

• Check valve is blackrubber flap valve torear of drain sump.

• Remove by lifting outof slot.

Page 220: Bosch Dishwasher SHU Complete Troubleshooting Guide

49

Tank Removal

• Remove racks frominterior.

• Remove large strainerby unscrewing andlifting.

• Remove fine strainerby lifting out

Page 221: Bosch Dishwasher SHU Complete Troubleshooting Guide

50

Tank Removal

• Remove 4 T-20screws inside tanksump.

Page 222: Bosch Dishwasher SHU Complete Troubleshooting Guide

51

Tank Removal

• Unsnap upper armsupply tube from backwall of tank.

Page 223: Bosch Dishwasher SHU Complete Troubleshooting Guide

52

Tank Removal

• Remove T-20 screwsfrom hinge mountingbracket. (1 on eachside)

Page 224: Bosch Dishwasher SHU Complete Troubleshooting Guide

53

Tank Removal

• Remove 2 T-20screws from rear oftank.

Page 225: Bosch Dishwasher SHU Complete Troubleshooting Guide

54

Tank Removal

• Tilt tank up andremove.

Page 226: Bosch Dishwasher SHU Complete Troubleshooting Guide

55

HANDS ON

Page 227: Bosch Dishwasher SHU Complete Troubleshooting Guide

56

Base components

• Soil sensor• NTC and High temp.• Circulation pump• Heater• Pressure switch• Capacitor

Page 228: Bosch Dishwasher SHU Complete Troubleshooting Guide

57

Soil sensor

• Consists of LED (lightemitting diode) andLDR (light dependentresistor).

• Samples water clarityat first fill to set basis.

• Samples again afterfirst rinse & final rinseto determine if add’lrinses necessary.

Page 229: Bosch Dishwasher SHU Complete Troubleshooting Guide

58

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-8 .4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

The soil sensor consists of anLED(light emitting diode) and a LDR(light dependent resistor). Thesework together to test clarity of waterto determine need for add’l rinses.

Page 230: Bosch Dishwasher SHU Complete Troubleshooting Guide

59

Thermostat Sub-assembly

• Contains NTC sensorto cycle heatingelement for high tempwashing/rinse.

• Normal resistance isapprox. 50K ohms @room temperature.

• Resistance decreasesas temp. increases.

Page 231: Bosch Dishwasher SHU Complete Troubleshooting Guide

60

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

The temp. sensor reads 50,000 ohmsat room temperature. It is a NTC(negative temp. coefficient) and theresistance decreases as tempincreases.

Page 232: Bosch Dishwasher SHU Complete Troubleshooting Guide

61

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

Diagnosing the Temperature Sensor (Step 1)

1) Measure resistance between .5-7 & .5-6

2) Should read approximately 50,000 OHMs at 75degrees ambient. If open, replace sensor.

Page 233: Bosch Dishwasher SHU Complete Troubleshooting Guide

62

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

Diagnosing the Temperature Sensor (Step2)

1) If approximate value is read, add about 1 1/2gallons of hot water from sink tap

2) If sensor is good, resistance values should drop

Page 234: Bosch Dishwasher SHU Complete Troubleshooting Guide

63

Thermostat Sub-assembly

• Contained in the samehousing, thetemperature sensoralso contains HTCO(bimetal) to disconnectheater at 185 degrees.

• The HTCO is wired inseries with heatingelement.

Page 235: Bosch Dishwasher SHU Complete Troubleshooting Guide

64

Water Heater Circuit

• 1200 watt heater• Heater is concealed in

pump housing.• Heater is disabled

when circulation pumpis not running byaction of flow switch.

Page 236: Bosch Dishwasher SHU Complete Troubleshooting Guide

65

Water Heater Circuit

• 1200 watt heater• Normal resistance is

12 ohms.• Must be read directly

due to action of flowswitch.

Page 237: Bosch Dishwasher SHU Complete Troubleshooting Guide

66

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

Water Heater Circuit HTC opens at 185 Degrees 1200W heater, Heater measures 12 ohms (read at heater only) Float switch activated by action of circulation pump

Page 238: Bosch Dishwasher SHU Complete Troubleshooting Guide

67

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

DIAGNOSING HEATER CIRCUIT (Step 1)

1) Put dishwasher into the heat cycle (Pots & Pans cycle…shortlyafter the first fill)

2) Check for 120VAC at .7-2 on control module3) If no output voltage, change the control module

Page 239: Bosch Dishwasher SHU Complete Troubleshooting Guide

68

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

DIAGNOSING HEATER CIRCUIT (Step 2)

1) Remove the dishwasher from the installed position2) Remove the right side panel3) Remove yellow molex plug at terminal block

Page 240: Bosch Dishwasher SHU Complete Troubleshooting Guide

69

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

DIAGNOSING HEATER CIRCUIT (Step 3)

1) Check for continuity through the 185 degree T-stat2) Read between the lower portion of the molex plug and the left

terminal on the heater.

Page 241: Bosch Dishwasher SHU Complete Troubleshooting Guide

70

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

DIAGNOSING HEATER CIRCUIT (Step 4)

1) Check for approximately 12 OHMS across the heater

Page 242: Bosch Dishwasher SHU Complete Troubleshooting Guide

71

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

DIAGNOSING HEATER CIRCUIT (Step 5)

1) Check the flow switch….With no water or circulation motoroperation, the circuit should be open;

2) Remove the flow switch and depress the actuator. Continuityshould be read.

Page 243: Bosch Dishwasher SHU Complete Troubleshooting Guide

72

Circulation pump/motor and cap.

• To removepump/motor assembly,lift, depress tabs androtate clockwise.

• Pump and motor areseparate parts.

• To remove pump frommotor, lock motorwith finger, andunscrew pump.

Page 244: Bosch Dishwasher SHU Complete Troubleshooting Guide

73

Circulation pump/motor and cap.

• Motor is 120VACcapacitor start.

• Normal resistance is13.5 ohms between 1and 2 on motor, orI2.1-1 and I2.4-2 oncontrol board.

Page 245: Bosch Dishwasher SHU Complete Troubleshooting Guide

74

Module - I2…… K1 + K2 + K3

.2-1 .2-2

.7-1

.1-2

.1-1

X2X1I4

.6-1 .6-2 2

3 4

e3 NTC

m2

1

42

f5

r1

e5

s2f14

1

m3

A2

e0 a1

1

.1-365

Display Control Timer

.4-3 .4-4 .4-1 .7-2 .4-2

.5-7 .5-6 .5-3 .5-2 .5-1 I2.9 I2.8

dispenser

Reed switch Temp.sensor

Soil Sensor JumperServiceconnector

On/offdoorswitch

Circ.motor

Drainmotor

HTCO

heaterFlowswitch

Watervalve

Floatswitch

Waterlevelswitch

Dispenseractuator

Circulation motor reads 13.5 ohms betweenI2.4-2 & I2.1-1. Circulation motor operateson 120VAC.

Page 246: Bosch Dishwasher SHU Complete Troubleshooting Guide

75

HANDS ON

Page 247: Bosch Dishwasher SHU Complete Troubleshooting Guide

76

THATS ALL FOLKS

Page 248: Bosch Dishwasher SHU Complete Troubleshooting Guide

77

Cycle Sequence detail

*Drain pump runs for 15 seconds and stops.

*Fill valve opens and fills sump.

*Soil sensor samples water for clarity.

*Water level switch closes first time.

*Circulation pump starts, fill continues.

*Water level switch closes second time.

*Fill valve closes.

*Circulation pump runs for 9 minutes andstops.

*Soil sensor samples water (if too dirty go topre-wash cycle, if OK go to wash cycle).

*Drain pump runs for 30 seconds and stops.

Pre-rinse

Pre-wash 125F

Wash 161F

Rinse

Second Rinse

Rinse aid 161F

Drying

Page 249: Bosch Dishwasher SHU Complete Troubleshooting Guide

78

Cycle Sequence detail

*Fill valve opens and fills sump.

*Water level switch closes first time.

*Circulation pump starts, fill continues.

*Heater circuit is activated.

*Water level switch closes second time.

*Fill valve closes.

*Heater raises water to 125F and washes for 9minutes.

*Circulation pump stops.

*Drain pump runs for 30 seconds.

Pre-rinse

Pre-wash 125F

Wash 161F

Rinse

Second Rinse

Rinse aid 161F

Drying

Page 250: Bosch Dishwasher SHU Complete Troubleshooting Guide

79

Cycle Sequence detail

*Fill valve opens and fills sump.

*Water level switch closes first time.

*Circulation pump starts.

*Heater circuit activated, fill continues.

*Water level switch closes second time.

*Fill valve closes.

*Actuator opens soap cup, repositions arm.

*Heater raise water temp. to 161F and washcontinues for 9 minutes.

*Circulation pump stops.

*Drain pump runs for 30 seconds.

Pre-rinse

Pre-wash 125F

Wash 161F

Rinse

Second Rinse

Rinse aid 161F

Drying

Page 251: Bosch Dishwasher SHU Complete Troubleshooting Guide

80

Cycle Sequence detail

*Fill valve opens and fills sump.

*Water level switch closes first time.

*Circulation pump starts, fill continues.

*Water level switch closes second time.

*Fill valve closes.

*Circulation pump runs for 9 minutes.

*Soil sensor samples water (if too dirty go tosecond rinse, if OK go to rinse aid cycle)

*Circulation pump stops.

*Drain pump runs for 30 seconds.

Pre-rinse

Pre-wash 125F

Wash 161F

Rinse

Second Rinse

Rinse aid 161F

Drying

Page 252: Bosch Dishwasher SHU Complete Troubleshooting Guide

81

Cycle Sequence detail

Pre-rinse

Pre-wash 125F

Wash 161F

Rinse

Second Rinse

Rinse aid 161F

Drying

*Fill valve opens and fills sump.

*Water level switch closes first time.

*Circulation pump starts, fill continues.

*Water level switch closes second time.

*Fill valve closes.

*Circulation pump runs for 9 minutes.

*Circulation pump stops.

*Drain pump runs for 30 seconds.

Page 253: Bosch Dishwasher SHU Complete Troubleshooting Guide

82

Cycle Sequence detail

*Fill valve opens and fills sump.

*Water level switch closes first time.

*Circulation pump starts, fill continues.

*Water level switch closes second time.

*Fill valve closes.

*Actuator dispenses rinse aid.

*Heater raise water temp. to 161F.

*Circulation pump runs for 9 minutes andstops.

*Drain pump runs for 30 seconds and stops. .

Pre-rinse

Pre-wash 125F

Wash 161F

Rinse

Second Rinse

Rinse aid 161F

Drying

Page 254: Bosch Dishwasher SHU Complete Troubleshooting Guide

83

Cycle Sequence detail

Unit is idle for 11 minutes for condensationdrying to take place.

Dishes retain heat from high temperaturerinse better than tank of dishwasher, somoisture will migrate to dishwasher tank,condensing and gathering in the sump.

Pre-rinse

Pre-wash 125F

Wash 161F

Rinse

Second Rinse

Rinse aid 161F

Drying

Page 255: Bosch Dishwasher SHU Complete Troubleshooting Guide

!

"#

""

$%

$

$

HOUSEHOLDUSE ONLY

SHV4800,4300SHI 6800,4300SHU 6800,5300,9900,4300,3300,3030

Use and CareManual

DISHWASHERLAVE-VAISSELLE

LAVADORA DE PLATOS

Guide d’utilisationet d’entretien Manual de

uso y cuidado

USODOMESTICO

ÚNICAMENTE

UTILISATIONDOMESTIQUESEULEMENT

Page 256: Bosch Dishwasher SHU Complete Troubleshooting Guide

56 02 03 20 86 (8007)

Page 257: Bosch Dishwasher SHU Complete Troubleshooting Guide

ENGLISH - 1www.boschappliances.com

for selecting your dishwasher. You have joined the manyconsumers who demand quiet and exceptional perfor-mance from their dishwashers. This manual was writ-ten with your safety and convenience in mind and theinformation contained herein is very important. We, atBOSCH, highly recommend that you read this manualprior to using your dishwasher for the first time. As anadded convenience, a glossary of BOSCH DISH-WASHER FEATURES DESCRIPTIONS has beenadded to this manual so you can truly understand andappreciate the philosophy put into this exceptional prod-uct.

For even more information, visit our website atwww.boschappliances.com to learn about yourdishwasher as well as many other top quality Boschappliances.

Enjoy!

Congratulations, and Thank You from BOSCH

CONGRATULATIONS!

Page 258: Bosch Dishwasher SHU Complete Troubleshooting Guide

2 - ENGLISH www.boschappliances.com

UNIQUE FEATURES OF YOUR BOSCH DISHWASHERSTAINLESS STEEL INTERIOR• Improves Drying Performance• Resists Staining/Odors• Lifetime Warranty (see details on last page of manual)

TRIPLE FILTER SYSTEM• 100% of the Wash Water is Filtered Before it Touches Your Dishes• “Large Object Trap” Prevents Undesirable Objects from Damaging the Pump System

IN LINE FLOW THROUGH WATER HEATER (BOSCH FlowThroughHeater™)• Temperatures in excess of 160°F kill harmful germs while dissolving hard to remove

fats and soils• Eliminates an exposed heater element that can damage items that fall from the rack• Creates More Interior Space (BOSCH Tall Tub™)• Flexibility to Load Dishwasher Safe Items in Upper or Lower Rack

LOW NOISE SYSTEM (BOSCH AVS II ™)• Vibration Isolated Pump System Reduces Annoying Noises (BOSCH Suspension

Motor™)• Triple Insulation Creates the BOSCH AVS II Silence Rating• Side Panels Encapsulate Noise• Separate Pump Systems, one for washing and one for draining, improve efficiency

and reduce noise• Toe Kick Sound Shield on the SHU 6800 series results in unbelievable sound

performance (Bosch Sound Seal™)

RACKS• Tall Tub Allows Use of 10” Plates in the Upper Rack and 12” in the Lower Rack• Extra Tall Item Sprinkler Allows Removal of the Upper Rack and Washing of

Items up to 22” Tall• 12 Place Loading Capacity

SAFETY• Side Panels Enclose All Electrical Connections and Conserve Energy• Water Shutoff Device, Stops the Flow of Incoming Water when it is Detected Under

the Dishwasher• Child Proof Cycle Selection - Cycle Selection Buttons Must be Pressed Twice to

Change the Settings

PRESSURE CONTROLLED FILLING SYSTEM• Water Consumption is Reduced When Washing Small Loads• Water Fill Levels Are Consistent Over Various Water Pressures• Improved Accuracy Over Time Filled Systems

DUAL PUMP SYSTEM• Single Direction Main Pump is More Reliable• Improved Main Motor Efficiency

DETERGENT and RINSE AID DISPENSER• Sliding Detergent Cup Lid Prevents Blockage• Adjustable Rinse Aid Dispenser for Improved Performance in Various Water

Conditions

UNIQUE FEATURES

Page 259: Bosch Dishwasher SHU Complete Troubleshooting Guide

ENGLISH - 3www.boschappliances.com

Important Safety Instructions 4

Dishwasher Components 5

Materials Chart 6

Loading the Dishwasher 7-9

Adding Detergent 10

Adding Rinse Agent 11

Identifying Dishwasher Controls 12

Selecting a Wash Cycle 13-15

Interrupting, Changing or Cancelling A Cycle 16

Unloading the Dishwasher 17

Special Features 18-19

Care and Cleaning 20-21

Self Help 22

Models Features 23

Features Descriptions 24

Customer Service 25

Warranty 26

TABLE OF CONTENTS

TABLE OF CONTENTS

Page 260: Bosch Dishwasher SHU Complete Troubleshooting Guide

4 - ENGLISH www.boschappliances.com

This appliance must be connected to a grounded metal, permanent wiring system, or an equip-ment grounding conductor must be run with the circuit conductors and connected to the equip-ment grounding terminal or lead on the dishwasher.

WARNING — This dishwasher must be grounded in accordance with the National Electrical Codeand/or local codes. Make sure this dishwasher has been properly grounded and installed by aqualified installer before using.

1. Bosch dishwashers are provided with two manuals; one, Installation InstructionManual and one, Use and Care Manual. Read all instructions before using thedishwasher.

2. Use the dishwasher only for its intended function.3. Use only detergents or wetting agents recommended for use in a dishwasher and

keep them out of the reach of children.4. When loading items to be washed:

a. Locate sharp items so that they are not likely to damage the door seal; andb. Load sharp knives with the handle up to reduce the risk of cut-type injuries.

5. Do not wash plastic items unless marked “dishwasher safe” or the equivalent. Forplastic items not so marked, check the manufacturer’s recommendations.

6. Do not touch the heating element during or immediately after use.7. Do not operate your dishwasher unless all the enclosure panels are properly in

place.8. Do not tamper with controls.9. Do not abuse, sit on, or stand on the door or dish rack of the dishwasher.10.To reduce the risk of injury, do not allow children to play in or on the dishwasher.11.Under certain conditions, hydrogen gas may be produced in a hot water system

that has not been used for two weeks or more. Hydrogen gas is explosive. If thehot water system has not been used for such a period, before using the dishwasherturn on all hot water faucets and let the water flow from each for several minutes.This will release any accumulated hydrogen gas. As the gas is flammable, do notsmoke or use an open flame during this time.

12.Remove the door to the washing compartment when removing an old dishwasherfrom service or discarding.

GROUNDING INSTRUCTIONS

SAVE THESE INSTRUCTIONS !

WARNING — When using your dishwasher, basic safety precautions shouldalways be followed to reduce the risk of fire, electric shock, and/or injury topersons, including the following:

IMPORTANT SAFETY INSTRUCTIONS

WARNING

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ENGLISH - 5www.boschappliances.com

Figure 1, below, identifies the components of your dishwasher, and shows the page number(s)in this manual on which more information about the component is available. Familiarizeyourself with the various parts of your dishwasher before you attempt to wash the first loadof dishes.

7

4

5

9

8

63

2

1

10

DISHWASHER COMPONENTS

1. Door gasket Pg. 212. Detergent Dispenser Pg. 103. Filters (3) Pg. 204. Model and Serial Number Label Pg. 255. Lower Rack Pg. 96. Lower Spray Arm Pg. 217. Rinser Agent Dispenser Pg. 118. Silverware Baskets (2) Pg. 99. Upper Rack Pg. 810. Upper Spray Arm Pg. 21

Components: Page Number:

Figure 1

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6 - ENGLISH www.boschappliances.com

MATERIAL DISHWASHER USE COMMENTS AND/OR SPECIAL INSTRUCTIONSACRYLIC NOT Crazing may occur.

RECOMMENDEDADHESIVE NOT Items joined by adhesives, whether plastic, wood,JOINED ITEMS RECOMMENDED bone,steel, copper or tin, etc. may be loosened.ALUMINUM USUALLY SAFE Colored anodized aluminum may fade over time.

Minerals in the water may cause spotting ordarkening of aluminum. This can usually be re-moved by scouring with a soap filled steel wool pad.

BONE HANDLED NOT Handles may separate.UTENSILS RECOMMENDEDCHINA, CRYSTAL, USUALLY SAFE Decorated china, stoneware, and crystal that is& STONEWARE hand-painted or trimmed may discolor, fade, or spot.

You should hand-wash these items. Position fragileglassware so that it will not topple over or come incontact with other dishes during the wash cycle. Ifyou are not sure whether a particular item is dishwasher safe, contact the dish manufacturer.

GLASS USUALLY SAFE Milk glass may yellow.IRON NOT Iron will rust. Wash by hand and dry immediately.

RECOMMENDEDNON- NOT The Bosch dishwasher is only intended for use inDISHWARE ITEMS RECOMMENDED cleaning standard household dishware items.NON-STICK USUALLY SAFE After drying the non-stick coating should be coveredCOATINGS with a light coating of vegetable oil.PEWTER, BRASS, NOT Pewter will tarnish. Wash by hand and dry& BRONZE RECOMMENDED immediately.PLASTIC USUALLY SAFE Wash only “dishwasher-safe” plastics. Decorated

plastics may fade.STAINLESS USUALLY SAFE Do not let stainless steel items contact copper,STEEL sterling silver, silverplate, or dissimilar metal items.STERLING SILVER USUALLY SAFE Do not let sterling silver or silverplate items come& SILVERPLATE in contact with dissimilar metal items.TIN NOT Tin will rust. Wash by hand and dry immediately.

RECOMMENDEDWOOD NOT Wooden bowls, wooden utensils and wood handled

RECOMMENDED utensils can warp, crack, or lose their finish.

Important: Before you wash anything in the dishwasher, check the materials chartshown below in Table 1. Some materials are not dishwasher-safe and should behand-washed. Others require special loading considerations. Before washing anydishware or cookware, contact the manufacturer of the material to confirm that itis dishwasher-safe.

MATERIALS CHART

Materials Chart

Table 1

Page 263: Bosch Dishwasher SHU Complete Troubleshooting Guide

ENGLISH - 7www.boschappliances.com

LOADING THE DISHWASHER

• Use the Rinse & Hold cycle if waiting an ex-tended period of time before washing.

• Pre-soak and hand-scour pots and pans withburned-on or blackened food.

Pre-Load Preparation• Remove large particles of food from the

dishes before food has a chance to dry, butrinsing is not necessary.

Food soils will actually enhancethe detergent’s performance.

• Load dishwasher so water can circulate freelyand reach every part of item.

• Do not allow delicate items to touch - theycould be damaged.

• Place items upside down - so water does notcollect inside of them.

• Place items so that nothing protrudes throughthe bottom of the racks - this could block therotation of the spray arms.

General Loading Tips

• Do not place foreign objects, such astoothpicks, paper products, plasticbags, or packaging materials, into thedishwasher!

Before loading the dish-washer, review the materialchart provided on Page 6.

Place large and/or heavily soiled items in the bot-tom rack of the dishwasher. Load heavily soiledpots and pans face down, as shown in Figure 4.For larger items, fold down the rear tines on thebottom rack. When in the down position, theycan hold extra large utensils, such as servingspoons or large knives.

Loading the Bottom Rack

Rack attachment is available in some models.

AH

AM

DW

-1 -12 Place Setting

Bottom Rack

Figure 2

AH

AM

DW

-1 -12 Place Setting

Top Rack

Figure 3

Figure 4

Bottom Rack

Page 264: Bosch Dishwasher SHU Complete Troubleshooting Guide

8 - ENGLISH www.boschappliances.com

LOADING THE DISHWASHER

Upper PositionMax. height (on top)8”Max. height (on bottom)14”

Lower PositionMax. height (on top)10”Max. height (on bottom)12”

Figure 8

Top Rack AdjustmentThe top rack height of the Bosch dishwash-

ers is adjustable (in most models.) There is anupper and lower position for the top rack which isused to accomodate items with different heights.

Loading the Top Rack

How to Adjust the Top Rack1. Pull out (empty) top rack to the point where

it can be lifted upward.2. Pull the rack outward and up until rollers

are completely free of channels.3. Reinsert the rack with the other set of roll-

ers on the channel.

Cup Shelves• Flip down cup shelves.• Place glasses upside down with stems resting in the “V” of the shelves.

Figure 6

Figure 7

Figure 5

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ENGLISH - 9www.boschappliances.com

LOADING THE DISHWASHER

All Bosch dishwashers have a large silverware bas-ket in the bottom rack. Those models with theTOP RACK ONLY feature have a an additional up-per small silverware basket.For personal safety and a top quality clean, placethe silverware in the baskets:• so that they do not nest together.• place silverware with handles-down, but• place knives and other potentially danger-

ous utensils handles-up.

Loading the Silverware Basket(s)

NESTINGSILVERWARE

LargeSmall

Figure 12

Below is an example of a silverwareloading pattern that prevents nesting.

Caution: Alwaysload sharp utensilswith the sharppoint down !

Some models have a large silverware basket with alid. The lid prevents nesting of silverware, To use,first fold the basket lids down (snap in place), thenload silverware. Refer to figures 11 and 12 for rec-ommended silverware loading.

Large Silverware Basket with Lid

Figure 9

Figure 10a

Figure 11Figure 10b

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10 - ENGLISH www.boschappliances.com

Figure 13

1. Locate the detergent dispenser on the insidedoor of the dishwasher (see Figure 1).

2. Open the detergent dispenser cover by push-ing the release tab.

3. Fill dispenser. Measure the amount of detergent to use based on the cycle selected andthe water hardness (see chart below).

4. Close dispenser. With fingers on arrow, slidecover over the detergent chamber and pressdown on the arrow until it clicks shut.

Use only fresh dishwashing detergent (powder isrecommended). Use of other types of detergentscan result in excessive suds. Concentrated de-tergents usually call for lower usage than standarddetergents.

ADDING DETERGENT

Recommended Detergent Usage

PowerWATER Scrub Scrub Regular Delicate/ Quick Rinse &TYPE Plus Wash Wash Economy Wash Hold

Hard 45 ml 45 ml 25-45 ml 25 ml 15-25 ml None

Medium 45 ml 25-45 ml 25 ml 15-25 ml 15 ml None

Soft 25-45 ml 25 ml 15-25 ml 15 ml 15 ml None

WASH CYCLE

Important: Too much detergentcombined with soft water maycause etching of glassware.

For the best washing re-sults it is important to usethe correct type andamount of detergent andrinse agent.

The detergent will be dis-pensed automatically duringthe wash portion of the cycle.

Filling theDetergent Dispenser

Selecting the Right Detergent

Table 2

Figure 14

Release Tab

Detergent Dispenser Cover

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ENGLISH - 11www.boschappliances.com

Rinse AgentRinse agent, or a rinse aid, is used to provideoptimum drying results and diminish water spot-ting. Always use a rinse agent with the Boschdishwasher to insure proper drying results. Itrinses the dishware and also rinses the internalparts of the dishwasher.

Rinse Agent Indicator LightSome models are equipped with an additional rinseaid indicator light on the control panel. When therinse agent dispenser is empty, the indicator light willglow and the level indicator will show a silver back-ground with black lines.After filling the rinse agent dispenser, close the doorand wait a few minutes for the indicator light to reg-ister.

Rinse AgentDispenser Regulator

The rinse agent reservoir of the Bosch dishwasher isprovided with a regulator calibrated from 1 to 6. (SeeFigure 15.) This regulator controls the amount ofrinse agent dispensed. The dishwasher leaves thefactory preset to 4. However,

Note: Refill rinse agent whenthe level indicator shows a silverbackground with black lines.

Rinse agent is available in liq-uid or solid form. Only use theliquid type of rinse agent inthe Bosch dishwasher.

1. Open the dishwasher door fully.

2. Open the cover of the rinse agent dispenser bypressing the star on the cover with your indexfinger while pulling on the tab with your thumb.

3. Add rinse agent to the reservoir until the levelindicator turns dark, indicating that the reservoiris full (capacity is approx. 3.5 oz.).

ADDING RINSE AGENT

• if you see streaks, you should turn theregulator to a lower number.

• if you see water spots, you should turnthe regulator to a higher number.

To Fill the Rinse Agent Reservoir:

TO ADJUST RINSEAGENT REGULATORSETTING:

1. OPEN THE COVEROF THE RINSE AGENTDISPENSER.

2.TURN THE SETTINGINDICATOR TO THEDESIRED SETTING.

Figure 15

Figure 16

Figure 17

Rinse agent level indicator

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Figure 18, below, is an illustration of the control panels for the various dishwasher models.BOSCH DISHWASHER CONTROLS

SHU 9900

SHV 4800

SHV 4300

SHU 4300

SHU 3300

Figure 18

!"

!"

!"#"

SHU 3030

$%

"%

SHU 6800&

SHI 6800

SHU 5300

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ENGLISH - 13www.boschappliances.com

!"#$#%

!"#$#%

&

!'#()%

!'#()%

*!'

!'#$#%

!'#+)%

,-"

!"#++%

!"#$#%

.

/

0

0

!"#()%

!'#)(%

,-"

CYCLE SELECTION CHARTS

The Bosch models featuring Sensotronic™ will reduce water consumption by approximately 20%, ifthe dishes are lightly soiled. For models with Top Rack Only™, water consumption is reduced approxi-mately 30% when using the feature. Shown above are the average values that may be obtained whilerunning the dishwasher under normal conditions. Actual values may vary.The actual cycle duration,water and energy usage are dependent upon inlet water temperature.

Cycle Selection Chart Bosch Dishwashers(other than SHU 3030)

Table 3

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14 - ENGLISH www.boschappliances.com

!"#$#%

!"#$#%

&'

&'

'!( '!(

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!(#$#%

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'!( '!(

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*

+

,

,

Cycle Selection Chart for SHU 3030

Note: On the SHU 3030, when you select “Rinse & Hold” on the “Start and Run Knob”, you mustalso select “Rinse & Hold” on the “Temp. Options” button. If not, the unit will go into heat delay,which will cause an extended run time.

Soap should not be used with the “Rinse & Hold” cycle.

Table 4

CYCLE SELECTION CHARTS

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The dishwasher will wash and dry the contents basedon cycle selection made. Refer to Tables 3 y 4: WashCycle Selection Chart to select the most appropriatecycle for the wash load.Follow these steps to select a cycle and start thedishwasher:

SELECTING A WASH CYCLE

1. Close the dishwasher door, making surethat door latches are closed.

2. Press the on/off switch.

3. Select the button for the program desired.*

4. The dishwasher will start automaticallyand continue to the end of the selectedcycle.

5. At the end of the cycle the dishwasherwill stop and either the “Clean” light willbecome illuminated, the LED display willshow“CL” or “00”, or the dishwasher willbeep.

Note: All indicator lights willremain illuminated until the on/off switch is pressed or the dooris opened.

SHU/SHI Models:

SHV & SHU 9900 Models:1. Open dishwasher door.

2. Press the on/off switch.

3. Push the button once for the programdesired.

4. Close door until it latches and the pro-gram will begin.

5. Same as #5 above.

Push the desired button TWO TIMESif another program button is lit up.

Various Model Types

VARIOUS END OFCYCLE INDICATORS

* Clean light illuminates* CL or 00 is displayed on the LED.* Cycle Completion Beeper sounds off

(SHU 9900 models only)

$%

"%

SHU/SHI

SHV & SHU 9900

Figure 19

Figure 20

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16 - ENGLISH www.boschappliances.com

Cycle InterruptionAs a safety feature the dishwasher will automaticallyturn itself off whenever the door is opened. However,if the door is opened quickly while in a wash or rinsecycle some water may splash out of the dishwasher.For this reason it is recommended that the machinealways be switched off before opening the door.

Changing a CycleTo change the cycle selection, press the programbutton of the desired cycle TWICE. The chosen cyclebutton (or the light above it) becomes illuminated,showing that it has been selected.* SHU 3030 models do not have program lights

Cancelling a CycleEach control panel shows which buttons to simulta-neously push to cancel a cycle. Refer to your dish-washer to find the cancel drain buttons on your par-ticular model.

INTERRUPTING, CHANGING OR CANCELLING A CYCLE

1. SHU/SHI models, close the door andpress the on/off button.

1. SHV models, push the on/off buttonand close the door.

To Interrupt a Cycle1. press the on/off button to stop operation.2. Wait at least 10 seconds (or until the water noisesstop) before opening the door.

To Resume a Cycle

1. Press the indicated buttons at the sametime and hold for approximately 3 seconds.

2. When the drain pump noises stop and theLED display or clean light indicate that theend of the cycle has been reached, the dishwasher is reset.

3. Press the on/off button to turn thedishwasher off.

4. The dishwasher is now ready to run aselected cycle. Add more detergent ifnecessary.

WARNINGDO NOT PULL DOORFULLY OPEN WHILEDISHWASHER IS IN OP-ERATION. QUICKLY OPENINGTHE DOOR WHILE DISH-WASHER IS IN OPERATIONCOULD RESULT IN SERIOUSSCALDING.

Figure 21

Figure 22

Figure 23

ON/OFF BUTTON

CHANGE CYCLE

CANCEL CYCLE

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Condensation DryingThe combination of a high final rinse tempera-ture, the tub’s cool stainless steel interior, andthe sheeting action of a Rinse Agent result in ef-fective and efficient drying. The closed conden-sation drying feature is hygienic, and saves en-ergy and money. For best drying results, it isimportant that the Rinse Aid Dispenser be keptfull.

UNLOADING THE DISHWASHER

UnloadingWhen unloading the dishwasher always unloadthe lower rack first and then unload the upperrack. This will minimize the chance of water dropsfrom the upper rack falling on the dishes in thelower rack. The silverware basket(s) of the Boschdishwasher can be removed for easy unloading.

The dishware tends to get hot immediately fol-lowing a completed cycle. If the door is openedslightly for a few minutes before unloading, thedishes will cool more quickly.

Figure 24

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The Top Rack Only™ CycleSome BOSCH models have a Top Rack Only cyclethat saves energy and water when you have onlya small load of dishes. Also, you’ll use less deter-gent for the Top Rack Only cycle. The washingtime, however, is not reduced.

The upper rack of the dishwasher has been de-signed with flexibility in mind. You can load glasses,cups, plates, bowls and small pots in many differ-ent positions to fit your needs. Figure 26 shows atypical mixed load placed correctly in the upperrack for the Top Rack Only cycle.

Delayed StartOn a few Bosch dishwashers, the start of the wash-ing cycle can be delayed for up to 9 hours in 1-hour increments. Follow these steps to delay thestart of a wash cycle:

SPECIAL FEATURES

1. Close the door of the dishwasher securelyuntil the latches snap shut.

2. Press the on/off button. The indicatorlight for the cycle that was last selectedilluminates.

3. Immediately press the timer button la-beled DELAY-START-HOURS and the LEDdisplay will show “1h”.

4. Press the DELAY-START-HOURS button asmany times as necessary until the LEDdisplay shows the desired num-ber of hours. (Ex: 1h, 2h, 3h...).

Please refer to the (pg. 23, Table 6) features chart to determine which special featuresyour particular model dishwasher has.

The cycle can be changed atany time during the delay.

Figure 25

Figure 26

DELAY START BUTTON

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AccomodatingExtra Tall Items

If you have extra tall items that cannot fit in the bot-tom rack without interfering with the upper sprayarm or without hitting the top rack (max. height 22”),you can remove the upper rack. A special acces-sory, the Extra Tall Item Sprinkler, lets you run thedishwasher with top rack removed. See Figures 27and 28.

Installing “Extra TallItem Sprinkler”

1. With top rack empty, remove it from the dish-washer by pulling the rack toward you to thepoint where you can lift it up and out, dis-engaging the wheels from the side rails.

2. Place the “Extra Tall Item Sprinkler” over thetop rack spray outlet at the back of the dish-washer tub and turn it clockwise to lock thesprinkler head in place. See Figure 28.

3. Place the extra tall items in the bottom rackfor washing, as shown in Figure 27. Toremove the Extra Tall Item Sprinkler, turn itcounterclockwise and pull it out. Then replacethe top rack.

SPECIAL FEATURES

Cycle Completion Signal(SHU 9900 models)At the end of a wash cycle, the beeper will soundoff two times, and again every 15 minutes until thedishwasher is turned off.To Enable or Disable the Cycle Completion Signal1. Open the door, hold down the “Quick Wash”button and simultaneously turn the Dishwasher on.The “Quick Wash” light will blink (program mode).2. While the light is still blinking, push the “QuickWash” button.

• If the machine beeps, then the CycleCompletion Signal has been enabled.

• When you push the button again and itdoesn’t beep, it means that the CycleCompletion Signal has been disabled.

3. Turn the Dishwasher off to take it out ofprogram mode.

Figure 27

Figure 28

Note: Be sure to remove theExtra Tall Item Sprinkler be-fore you reinstall the top rack,otherwise the door could be-come damaged and not closeproperly.

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CARE AND CLEANING

* Bosch dishwashers have a triple filter system com-posed of a Microfilter, a Fine Filter and a Large Ob-ject Trap.

These tasks are described in subsequent sections.

Triple Filter SystemCertain areas of your Bosch Dishwasher require peri-odic owner inspection. The following maintenancetasks can be performed to help assure top perfor-mance:

General Maintenance

Clean Filters

• Check the Large Object Trap *• Check the Wash Arms• Clean Stainless Steel Inner Door• Clean Door Panel

(Stainless Steel or Colored)• Clean the Door Gasket

1. Turn the ring handle (as shown in Figure 30)1/4 turn counter-clockwise and lift out.

2. Lift out the large object trap for inspection.

3. If large solids, such as bones, large seed(s), orpaper labels are present, remove them by hand.The Large Object Trap can also be flushed outby holding it under running water.

4. If necessary, the micro and fine filters can beremoved at this time.

To Remove the Large Object Trap:

1. Press the filters firmly into position.

2. Turn 1/4 turn clockwise until locked.

3. Pull gently to ensure that it is lockedin place.

To Re-insert the Large Object Trap in theDishwasher:

3. Fine Filter

2. Micro Filter

1. Large Object Trap

Figure 29

Under normal use, the filter systemis self-cleaning. The purpose of theLarge Object Trap is to help preventundesirable objects such as bones,glass, straws and toothpicks fromdamaging the pump system. Itemssuch as these should be removedfromthe Large Object Trap.

Figure 30

Figure 31

Turn left to loosen (counter-clockwise)and right to tighten (clock-wise).

Take out Large Object Trap, Microfilterand Fine Filter to inspect and clean.

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Clean Door GasketClean the door gasket regularly to remove foodparticles that can gather from normal loading. Ifnecessary clean the door gasket using a dampcloth.

The wash arms should be checked periodically toensure that the spray orifices are clear and unob-structed. If the wash arms require cleaning theyare easy to remove and replace:

Clean Stainless Steel Tankand Inner Door

Clean the outer edges of the inside door panelregularly to remove food particles that can gatherthere from normal loading. If spots begin to ap-pear on the stainless steel tank or inner door, checkto make sure that the rinse agent reservoir is full.

Clean Outer DoorColored DoorsUse only soft cloth that is lightly dampened withsoapy water. Do not use paper towels or an abra-sive cloth.

Stainless Steel Doors:Use a soft cloth with a non-abrasive stainless steelcleaner. For best results, apply stainless steelcleaner directly to the cloth, then wipe the sur-face. Do not use metal scouring pads to cleanthe stainless steel surfaces as these can scratchthe surface and leave metal fragments that canrust.

1. The lower wash arm simply snaps intoplace. Pull gently upwards to removeit.

2. The upper wash arm is held in positionby a locking nut. Turn the locking ringapproximately 1/8 turn clockwise to re-lease the arm. See Figure 32.

3. After cleaning, reinstall the wash arms.

Check Wash Arms

CARE AND CLEANING

Gasket

Figure 32a

Figure 33

For SHU 6800 ModelsOnly:Normally, the bottom doorseal should not be cleaned. Ifnecessary, wipe only with adry clean cloth.

Figure 32b

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Dishwashers may exhibit problems that are unrelated to a malfunction of the dishwasher itself. Thefollowing table may serve to answer your question about a problem you are having without having tocall a repair person.

SELF-HELP

PROBLEM POSSIBLE CAUSEDishes do not dry Rinse-aid dispenser is empty. Fill rinse-aid dispenser.Indicator light(s) do A fuse may have blown or a circuit breaker tripped. Replace fuse ornot come on reset circuit breaker at your fuse box/breaker box.Dishwasher does not Door of dishwasher not properly closed. Close dishwasher makingstart sure that door latches.Dishwasher runs a long If the dishwasher completes the cycle, but the run time seemtime exceptionally long it is probably due to cold incoming water. To avoid

this problem it is recommended that before starting the dishwasher:open the hot water faucet at the sink nearest the dishwasher andrun the water until it runs hot. Then turn off the water and start thedishwasher.

Machine cycle does Water line is closed or inlet filter is blocked. Open water valve and/ornot advance to rinse check inlet filter.Water not pumped Kink in drain hose. Filter clogged. Kitchen sink clogged. Air gap (typefrom dishwasher installed at sink) clogged. Check drain hose and fine and coarse

filters (see section titled CARE and CLEANING). Check kitchen sink tomake sure it is draining well. If problem is kitchen sink not drainingyou may need a plumber rather than a serviceman for the dishwasher.

Detergent dispenser A program was not completely finished.lid will not closeLower spray arm does Remove lower spray arm and clean arm and spray arm mounts.not rotate freelyWhite deposits left on Too little rinse-aid.dishesStreaks on glassware Too much rinse-aid used.Rattling noises Utensils not properly arranged.Suds in dishwasher Incorrect type of detergent used. Use only automatic dishwasher

detergents.Unsatisfactory • Incorrect amount of detergent or rinse agent.washing result • Utensils incorrectly arranged or rack overloaded.

• Wash arm rotation blocked by utensils.• Filters not properly fitted into position.• Clogged nozzles in wash arm(s)• Unsuitable program selected.

Table 5

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MODELS FEATURES

ModelFeatures

Chart

MODELS

FEATURESStainless Steel Bosch TallTub™ • • • • • • • • • • •

Bosch Flow-Through Heater™ • • • • • • • • • • •

161°F Wash Temperature • • • • • • • • • 151°F •

Four-level Wash • • • • • • • • • • •

Condensation Drying • • • • • • • • • • •

Bosch Sensotronic™ • • - - - - - - - - •

Bosch Top Rack Only™ Wash • - • - - - • - - - -

Power Scrub Plus Cycle • • • • • • • • • - •

Power Scrub Cycle - - - - - - - - - • -

Scrub Wash Cycle • • - - - - - - - • •

Regular Wash Cycle • • • • • • • • • • •

Delicate/Economy Cycle • • • • • • • - - - •

Quick Wash Cycle • - - - - - - - - - -

Rinse & Hold Cycle • • • • • • • • • • •

Nylon Racks • • • • • • • • • • •

Height-Adjustable Upper Rack • • • • • • • - • - -

Flip Tines on Bottom Rack • • • • • • • - - - •

Electronic Controls • • • • • • • • • - •

Delay Start • • - - - - - - - - •

Digital Countdown Display • • - • - - - - - - •

LED Sequence Indicator - - • - • • • • - - -

Bosch AVS™ Silence Rating 46 50 48 54 54 54 48 56 54 57 52

Exceptionally Low Water Usage • • • • • • • • • • •

Triple Filter System • • • • • • • • • • •

“Refill Rinse Agent” Light • • • • - - • - - - •

Cycle Completion Signal - - - - - • • - - - -

SHU

303

0 Se

ries

SHU

991

0 Se

ries

SHU

330

0 D

LX

SHU

992

0 Se

ries

SHU

/SH

I 68

00 S

erie

s

SHU

531

0 Se

ries

SHV

4800

Ser

ies

SHU

430

0 Se

ries

SHV

4300

Ser

ies

SHU

330

0 Se

ries

SHU

530

0 Se

ries

ACCESSORIES CHART PART NUMBERSS door with SS handle (SHV Series only)* SGZ 1005 UCSS door frame and front (SHU Series only; accepts SS panel only)* SGZ 1025 UCAlmond door frame and front (Accepts almond panel only) SGZ 1024 UCHeavy-duty white door frame kit** (For 1/8” to 1/4” panels) SGZ 1042 UCHeavy-duty black door frame kit** (For 1/8” to 1/4” panels) SGZ 1046 UCAdaptor kit for 60 cm cabinet SGZ 1040 UCExtra large knife rack SGZ 1000 UCGlass rack insert for bottom rack (max. ht. 13.5”) SGZ 2004 UC

*SS = Stainless SteelTable 6

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Bosch AVS II™ Silence Rating: A two-pump motor system, suspension motor,and tripleinsulation make Bosch the quietest dishwashers in North America.Bosch SoundSeal™: An added measure of insulation on the SHU 6800 series in the form of asound tight seal eliminating noise typically emitted from the toe-kick area.Bosch Suspension Motor™: By suspending the motor in air, any vibration that may be causedis eliminated.Condensation Drying: The combination of a high final rinse temperature, the tub’s coolstainless steel interior, and the sheeting action of a Rinse Agent result in effective and efficientdrying. The closed condensation drying feature is hygienic, and saves energy and money.Cycle Completion Signal: An optional beeper which lets you know when the cycle is complete.Delicate/Economy Cycle: Saves water and energy, while removing loosely attached food fromdelicate dishware.Delay Start: Delay the dishwasher’s start for up to nine hours.Digital Countdown Display: Lets you know exactly when the cycle will be complete.Electronic Controls: Easy to use push button controls with programsBosch Flow-Through Heater™: Water passes through a heating chamber where it is efficientlyheated to temperatures up to 161°F.Four-level Wash: Multiple spraying levels provide optimal disbursement of fresh water.Height-Adjustable Upper Rack: Raise or lower the top rack to fit items up to 14” tall in thebottom rack, or up to 10” tall in the top rack.LED Sequence Indicator: Indicates the current point in the wash cycle, so you’ll know if it’s OKto add a last-minute dish.Exceptionally Low Water Usage: Bosch dishwashers use very little water — as low as 2.5gallons in the Delicate/Economy cycle.Flip Tines: Fold-down tines in the bottom rack accommodate even large cookware.Nylon Racks: Eliminate cuts and nicks with nylon-coated racks featuring a five-year warranty.Power Scrub Plus Cycle: For heavy loads with stuck-on food, this powerful cycle features anextra 125° pre-wash to soak food loose.Quick Wash Cycle: Cleans lightly soiled dishes in a short 29-minute cycle. Good for glassware,coffee cups, etc.“Refill Rinse Agent” Light: Lets you know when you need to add more rinse agent.Regular Wash Cycle: Good for everyday loads with loosely attached food.Rinse & Hold Cycle: If you don’t want to wash right away, use this cycle to rinse the dishware,then hold it until you have a full load.Bosch Sensotronic™: Proven scanning technology checks the condition of the water, thenautomatically decides whether a second fresh-water fill is necessary.Scrub Wash Cycle: For stuck-on foods that don’t require soaking, this powerful cycle uses lesswater than the Power Scrub Plus Cycle.Stainless Steel Bosch Tall Tub™: Provides the assurance of a lifetime warranty against rust-through with a hygienic interior surface.Bosch Top Rack Only™ Wash: When you don’t have a full load of dishes to wash, this featurewashes just those on the top rack, saving water.Triple Filter System: Three built-in filters ensure the distribution of clean water throughout thewash cycle, and an added safety feature preventing any foreign materials from clogging the mainpump or drain pump.

BOSCH DISHWASHER FEATURES DESCRIPTIONS

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Your Bosch dishwasher requires no special care other than that described in the care and cleaningchapter. If you are having a problem with your dishwasher, before calling for service please refer tothe Self-Help chapter. If service becomes necessary, contact your dealer or installer or an authorizedservice center. Do not attempt to repair the appliance yourself. Any work performed by unauthorizedpersonnel may void the warranty.

If you are having a problem with your BOSCH dishwasher and are not pleased with the service youhave received, please take the following steps (in the order listed below) until the problem is correctedto your satisfaction.

Please make a copy of your invoice and keep it with your manual.

CUSTOMER SERVICE

Figure 34

Please be sure to include (if writing), or have available (if calling), the following information:

• Model Number• Serial Number• Date of Original Purchase• Date Problem Originated• Explanation of Problem

Also, if writing, please be sure to include a daytime phone number.

You will find the model number and serial number information on the label located on the right-handside of the inner door of the dishwasher. See Figure 1for an example.

1. Contact your installer or the Bosch Authorized Service Contractor inyour area.

2. E-mail us from the customer service section of our web site,www.boschappliances.com.

3. Write to us at the address below:BSH Home Appliances, Corp.5551 McFadden AvenueHuntington Beach, CA 92649

4. Call us at: 1-800/944-2904.

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LENGTH OF WARRANTY SCOPE OF WARRANTY

1 Year Full Limited Warranty Bosch will repair or replace any component part that proves

From Date of Installation* defective under conditions of normal home use free of charge,

labor and shipping costs included. Repair service must be

performed by an Authorized Bosch Service Center (All cosmetic

damages must be reported within 30 days of installation).

2 Year Limited Warranty Bosch will provide replacement parts free of charge for any

From Date of Installation* component part that proves defective under conditions of

normal home use, labor charges excluded.

5 Year Limited Warranty on Electronics Bosch will repair or replace any microprocessor or printed

From Date of Installation* circuit boards that prove defective under normal use during the

second through fifth year from the date of original purchase,

labor charges excluded.

5 Year Limited Warranty Bosch will replace the upper or lower dish rack (excluding

From Date of Installation* rack components) free of charge, if the rack proves defective in

materials or workmanship under conditions of normal home use,

labor charges excluded.

Lifetime Limited Warranty against Bosch will replace your dishwasher with the same model or a

Stainless Steel Rust Through current model that is equivalent or better in functionality if the

From Date of Installation* inner liner should rust through under conditions of normal home

use, labor charges excluded.

Bosch will replace the stainless steel door of any dishwasher if

the door should rust through under conditions of normal home

use, labor charges excluded.

* Date of installation shall refer to the earlier of the date the dishwasher is installed or ten business days after the delivery date.

Exclusions:

This warranty does not cover service calls or repairs to correct the installation of the dishwasher, to provide instructions on the use of

your dishwasher, to replace house fuses or correct plumbing or the electric wiring in your home or to repair any dishwasher that’s use

was in a manner other than what is normal and customary for home use. In addition, the warranties provided in this Statement

exclude any defects or damage arising from accident, alteration, misuse, abuse, improper installation, unauthorized service work,

external forces beyond Bosch’s control, such as fire, flood, and other acts of God, or installation not in accordance with local electrical

and plumbing codes. Labor charges incurred in the repair or replacement of any dishwasher after the one year from date of

installation shall not be covered by this warranty. Any and all replaced and/or repaired parts shall assume the identity of the original

for purposes of the applicable warranty period.

TO THE EXTENT PERMITTED BY LAW, THIS WARRANTY IS IN LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES,

INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. BOSCH DOES NOT

ASSUME ANY RESPONSIBILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.

TO OBTAIN WARRANTY SERVICE, CONTACT THE NEAREST BOSCH AUTHORIZED SERVICE CENTER OR CALL 1 - 800 / 944 - 2904,

OR WRITE BSH HOME APPLIANCES CORP. DIRECTLY AT: 5551 McFADDEN AVENUE, HUNTINGTON BEACH, CA 92649. BE SURE TO

PROVIDE YOUR DISHWASHER’S MODEL, SERIAL NUMBER, PURCHASE DATE AND THE SELLER’S NAME AND ADDRESS.1

Statement of Warranties - Bosch Dishwashers

The warranties provided by BSH Home Appliances LP (“Bosch”) in this Statement of Warranties apply only to Bosch Dishwashers sold

to the first using purchaser by Bosch or its authorized dealers, retailers or service centers in the United States or Canada. The

Warranties provided herein are not transferable.