Integrated Control Diagnostic Codes
RED LED | Diagnostic Codes / Status of Furnace | |
Flash Code | ||
| ||
|
| |
Off | No power to control or board fault detected | |
|
| |
On | Board fault detected, | |
|
| |
Heartbeat1 | Control powered − displayed during all modes of operation if no errors are detected | |
1 | Reverse Line Voltage Polarity | |
|
| |
2 | Improper Earth Ground | |
|
| |
3 | Burner failed to light, or lost flame during heat demand | |
|
| |
4 | Low Flame Signal − check flame sensor | |
|
| |
5 | Watchguard − burner failed to light, exceeded maximum number of retries or recycles. | |
|
| |
6 | Not Used | |
|
| |
7 | Primary or Secondary Limit Open or Watchguard Mode − Limit Switch Open longer than 3 min- | |
utes | ||
| ||
|
| |
8 | Rollout Switch Open | |
|
| |
9 | Pressure Switch failed to close or opened during heat demand | |
|
| |
10 | Watchguard − Pressure Switch opened 5 times during one heat demand | |
|
| |
11 | Pressure Switch stuck closed prior to activation of combustion air inducer | |
|
| |
12 | Flame Sensed without gas valve energized | |
|
| |
13 | Low Line Voltage | |
|
| |
| Notes | |
|
| |
Note 1 | A "Heartbeat" is indicated by a "Slow Flash" − 1 sec on 1 sec off, repeating | |
|
| |
Note | Error codes are indicated by a "Rapid Flash" − the LED flashes X times at 1/2 sec on 1/2 sec | |
off, remains off for 3 sec, then repeats | ||
| ||
|
| |
| Last 10 error codes are stored in memory including when power is shut off to the unit. − To recall, | |
Note | press and release button, most recent will be displayed first, LED off for 3 sec, then next error | |
| code is displayed, etc. To clear error codes, depress and hold button longer than 5 seconds. | |
|
|
Page 38
