Amana Gas Furnaces: GUC, GUD, GUI, GUX
Re: Lockout Codes
The original control module in these furnaces is a White-Rodgers 50A50 controller.
| 50A50-206 Integrated Furnace Control | |
| Code | Description |
| On | Replace control |
| 1 | Lockout due to failed ignition |
| 2 | Pressure switch stuck closed |
| 3 | Pressure switch stuck open |
| 4 | Open limit |
| 5 | Missing jumper wire |
| Rapid | Flame sensed with no call for heat |