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TABLE 3
FLASH CODE
(X + Y)
STATUS / ERROR DESCRIPTION
FLASH CODE DESCRIPTIONS
Pulse
A 1/4 second flash followed by four seconds of off time.
Heartbeat
Constant 1/2 second bright and 1/2 second dim cycles.
X + Y
LED flashes X times at 2Hz, remains off for two seconds, flashes Y times at 2Hz, remains off for four
seconds, then repeats.
Pulse
Power on - Standby.
Heartbeat
Normal operation - signaled when heating demand initiated at thermostat.
FLAME CODES
1 + 2
Low flame current -- check flame sensor.
1 + 3
Flame sensed out of sequence -- flame still present. Flame sensed without gas valve energized.
PRESSURE SWITCH CODES
2 + 3
Low pressure switch failed open. Check blocked inlet/exhaust .
2 + 4
Low pressure switch failed closed. Pressure switch closed prior to activation of combusiton air inducer.
LIMIT CODE
3 + 1
Limit switch open.
WATCHGUARD CODES
4 + 1
Watchguard -- Exceeded maximum number of retries. Burners failed to light.
4 + 2
Watchguard -- Exceeded maximum number of retries or last retry was due to pressure switch opening.
4 + 3
Watchguard -- Exceeded maximum number of retries or last retry was due to flame failure.
4 + 5
Watchguard -- Limit remained open longer than three minutes.
4 + 6
Watchguard -- Flame sensed out of sequence; flame signal gone.
4 + 8
Low line voltage.
HARD LOCKOUT CODES
5 + 1
Hard lockout -- Rollout circuit open or previously opened.
5 + 4
Reversed line voltage polarity (control will restart if the error recovers). And or no Earth groas valve
faulund
5 + 5
Gas valve fault ( sensed open when should be closed, or sensed closed when should be open).
5 + 6
Program memory fault (internal microprocessor memory fault)
5 + 7
Flame sense circuit fault. (flame sense circuit or bad flame probe fault).
5 + 8
No communication packet fault (loss of communications between redundant microprocessor fault).
5 + 9
Bad communication packet fault. (corrupted communications between redundant microprocessor fault).
5 + 10
Redundant variable fault. (internal microprocessor memory retention fault).
