Troubleshooting: Cooling Sequence Of Operation - Haier GE APPLIANCES NF96US Service Manual

Troubleshooting: Cooling Sequence of Operation

NORMAL HEATING MODE
POWER ON
IGNITION CONTROL MAIN POWER ON.
CONTROL SELF DIAGNOSTIC CHECK. IS
CONTROL OPERATING NORMALLY?
IS THERE A PROPER GROUND?
YES
IS POLARITY CORRECT?
ABOVE 70 VOLTS?
ROLLOUT SWITCH MONITORED CONTINUOUSLY.
IS ROLLOUT SWITCH CLOSED?
LED: SLOW FLASH RATE REMAINS
UNCHANGED THROUGHOUT COOLING CYCLE.
THERMOSTAT CALLS FOR COOLING.
COMPRESSOR CONTACTOR AND SYSTEM
FAN ENERGIZED WITH 2-SECOND DELAY
(COOLING SPEED)
THERMOSTAT OPENS.
COMPRESSOR OFF.
SYSTEM FAN AND EAC TERM. OFF
WITH 45-SECOND DELAY.
YES
YES
NO
IS VOLTAGE
YES
YES
ABNORMAL HEATING MODE
LED FLASHES STEADY - CIRCUIT BOARD FAILURE
NO
GAS VALVE OFF. COMBUSTION AIR INDUCER OFF.
INDOOR BLOWER OFF WITH NORMAL DELAY.
INTERRUPT MAIN POWER TO RESET CONTROL.
NO
LED FLASHES CODE 2 - IMPROPER GROUND.
CONTROL WILL CONTINUE TO CALL FOR COOLING
IN THIS CONDITION.
NO
LED FLASHES CODE 1 - POLARITY REVERSED.
CONTROL WILL CONTINUE TO CALL FOR COOLING
IN THIS CONDITION.
LED FLASHES CODE 13 - LOW VOLTAGE.
CONTROL WILL CONTINUE TO CALL FOR
COOLING IN THIS CONDITION.
LED FLASHES CODE 8 - ROLLOUT SWITCH OPEN. GAS
VALVE OFF. COMBUSTION AIR INDUCER ON. INDOOR
BLOWER ON. SEQUENCE HOLDS UNTIL ROLLOUT
SWITCH CLOSES AND MAIN POWER IS INTERRUPTED
OR THERMOSTAT IS CYCLED OFF/ON FOR 1 SEC. MIN.
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