| 2 flash | 1 Hour Lockout |
| 3 flash | Pressure Switch Problem |
| 4 Flash | TCO Circuit Open/Short Condition |
| 5 Flash | Flame W/O Gas (Flame being sensed yet gas valve not energized) |
| 6 Flash | Rollout Switch Open/Short Condition |
| 7 Flash | W1 / W2 Swapped |
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| 2 flash | 1 Hour Lockout |
| 3 flash | Pressure Switch Problem |
| 4 Flash | TCO Circuit Open/Short Condition |
| 5 Flash | Flame W/O Gas (Flame being sensed yet gas valve not energized) |
| 6 Flash | Rollout Switch Open/Short Condition |
| 7 Flash | W1 / W2 Swapped |
Read More-