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All installations and services must be performed by qualified service personnel.
47
DOES BURNER SHUT OFF
WHEN THERMOSTAT IS
SATISFIED?
CHECK FOR 24 VOLTS
AT GAS VALVE.
REPLACE GAS VALVE
CHECK FOR SHORT IN WIRE TO
THERMOSTAT AND CORRECT
IF NECESSARY.
DOES THE CIRCULATING
AIR BLOWER TURN OFF
AFTER THERMOSTAT IS
SATISFIED WITHIN
120 SECONDS?
TROUBLE SHOOTING COMPLETE
NO NO
YES
YES
YES
NO
REFERENCE ECM
OPERATION MANUAL