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Amana Gas Furnace - Lockout Codes

Article ID: 177
Last updated: 31 Mar, 2017

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
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Article ID: 177
Last updated: 31 Mar, 2017
Revision: 8
Access: Public
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