NOFLO FAULT<0800>

WAIT A REASONABLE

PERIOD FOR FAULTTO CLEAR

HAS TIMEPASSED?

FAULTCLEARED??

NO

T EN

OU

GH

YES

YESDONE

NO

VIEW & COMPAREPRE, AMB, & VAC

READINGS.

P≈A-1V≈A-3

?

PUMPOK

YES

NO INSUFFVACUUM (V>A-3;

V≈A)?

YES

NO

ISOLATE PUMP. DO HYDROPHOBIC

PINCH TEST &CHECK “P” VALUE

ISOLATEDPUMP DRAW OK

(P≈A-3)?

YES

NO BADPUMP

CHECK EXH PORTFOR BLOCKAGE

1ST BEFOREREPLACING PUMP

DONE

INDICATIONS ARERESTRICTED FLOW

OR HIGH FLOWCONDITION

LARGE NEG ΔP(P≈A-3)

?

SMALL/NO ΔP(A≈P≈V)

?

YES

NO

CALLSUPPORT

YES

NO

CLOGGEDHYDROPHOBIC?

YES

NO

REPLACEHYDROPHOBIC

FILTER

DONE

LINERESTRICTION?

YES

NO

FIX CLOG OR REPLACE

EOL FILTERDONE

BADSOL ORMAN

MAGTESTER LIGHTS

ON SOL IN ZONEHOLD?

YES

NO

SOL PCB OKAY.CLEAN/REPLACE

MANIFOLDDONE

REPLACESOLENOID PCB.

CHECK MANIFOLDAFTERWARDS.

DONE

CALLSUPPORT

LIKELYPCB

POWER DOWN.DISCONNECT SOL

CONNECTORS.RESTORE POWER.

REALLY LOWP, V, & A VALUES

(≈10, 9, 11)?

YES

NO - ABOUTSAME AS BEFORE

SOLENOID(S)POSSIBLY

STUCK OPEN.CLEAN/REPLACE

MANIFOLD

DONE

1. PATIENCE

ANYPHANTOM

MANIFOLDS?

YES

NO

FIXCONFIGURATION

SETTINGS

2. PHANTOM MANIFOLDS

3. PUMP

4. BASIC CLOGS/RESTRICTIONS 7. MANIFOLD AND/OR SOLENOID PCB

Rev 003NOV016

Multi ZoneNo Flow Zone FaultQuick Diagnosis Flow Chart

5. CLOGGED HYDROPHOBIC FILTER

6. LINE RESTRICTIONS