Integrated Control Diagnostic Codes
FLASH CODE | STATUS / ERROR DESCRIPTION | |
(X + Y) | ||
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| FLASH CODE DESCRIPTIONS |
Pulse | A 1/4 second flash followed by four seconds of off time. | |
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Heartbeat | Constant 1/2 second bright and 1/2 second dim cycles. | |
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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. | ||
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Pulse | Power on − Standby. | |
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Heartbeat | Normal operation − signaled when heating demand initiated at thermostat. | |
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| FLAME CODES | |
1 + 2 | Low flame current −− run mode. | |
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1 + 3 | Flame sensed out of sequence −− flame still present. | |
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| PRESSURE SWITCH CODES | |
2 + 3 | Low pressure switch failed open. | |
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2 + 4 | Low pressure switch failed closed. | |
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2 + 5 | High pressure switch failed open. | |
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2 + 6 | High pressure switch failed closed. | |
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2 + 7 | Low pressure switch opened during ignition trial or heating demand. | |
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| LIMIT CODE | |
3 + 1 | Limit switch open. | |
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| WATCHGUARD CODES | |
4 + 1 | Watchguard −− Exceeded maximum number of retries. | |
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4 + 2 | Watchguard −− Exceeded maximum number of retries or last retry was due to pressure switch opening. | |
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4 + 3 | Watchguard −− Exceeded maximum number of retries or last retry was due to flame failure. | |
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4 + 5 | Watchguard −− Limit remained open longer than three minutes. | |
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4 + 6 | Watchguard −− Flame sensed out of sequence; flame signal gone. | |
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4 + 7 | Ignitor circuit fault −− Failed ignitor or triggering circuitry. | |
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4 + 8 | Low line voltage. | |
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| HARD LOCKOUT CODES | |
5 + 1 | Hard lockout −− Rollout circuit open or previously opened. | |
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5 + 2 | Control failed self check, internal error (control will restart if error recovers). | |
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5 + 3 | No Earth ground (control will restart if error recovers). | |
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5 + 4 | Reversed line voltage polarity (control will restart if the error recovers). | |
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5 + 6 | Low secondary (24VAC) voltage. |
Error Code Storage
The ignition control stores the last ten error codes in memory. The codes are retained in case of power loss.
Error Code Review
1 − Short R (2) to (1). Within 1/2 second, the STATUS LED will stay lit continuously to indicate that the short was sensed.
2 − Continue to hold the short between R (2) to (1). After 5 seconds, STATUS LED will go from being continuously
lit to off. This indicates that error code review is pend- ing.
3 − Remove R (2) to (1) short within ten seconds of STA- TUS LED turning off. This activates error code review.
4 − Last ten error codes will be flashed on the STATUS
LED.
5 − After final error code is indicated, STATUS LED will
flash to indicate normal operation.
Clearing Error Codes
1 − Short R (2) to (1). Within 1/2 second, the STATUS LED will stay lit continuously to indicate that the short was sensed.
2 − Continue to hold the short between R (2) to (1). After 5
seconds, STATUS LED will go from being continuously
lit to off.
3 − Continue to hold the short between R (2) to (1) beyond ten seconds after STATUS LED has turned off. STA- TUS LED will turn on, indicating that error codes have been cleared.
4 − Remove R (2) to (1) short. STATUS LED will flash to in-
dicate normal operation.
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