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 |