Troubleshooting Guide - Polaris GAS WATER HEATER Installation, Operation And Service Manual

CONTROL POWER
UP
IS PRESSURE SWITCH
OPEN
YES
TURN ON BLOWER
IS PRESSURE SWITCH
CLOSED
YES
6 SECOND PRE-PURGE
28
1018-525 SOFTWARE OPERATION SEQUENCE
TURN OFF BLOWER, AND TURN
NO
NO
NO
30 SECOND
INTER-PURGE
TURN OFF BLOWER FOR 60 SECONDS
ON IGNITER FOR 35 SECOND
WARM-UP
IS PRESSURE SWITCH OPEN
YES
TURN ON BLOWER AND
GAS VALVE FOR 3 SECONDS
TURN OFF IGNITER FOR 1 SECOND
FLAME PROVING PERIOD
IS FLAME PRESENT
NO
WAS THIS THE 3RD ATTEMPT
YES
YES
LOCKOUT
IGNORE PRESSURE SWITCH
FOR 5 SECONDS
NO
IS PRESSURE SWITCH
CLOSED
STEADY STATE HEATING
IS FLAME
PRESENT AND PRESSURE
SWITCH CLOSED
YES
TURN OFF GAS VALVE
NO FLAME
WAS THIS THE 3RD
FLAME LOSS
NO
YES
SWITCH CLOSED WITHIN
NO
YES
YES
NO
PRESSURE SWITCH
OPEN
IS THE PRESSURE
60 SECONDS
NO