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GCCA - Diagnostic Codes / Fault Codes

Article ID: 665
Last updated: 21 Dec, 2020

Amana Gas Furnaces: GCAC

Re: Diagnostic Codes / Fault Codes

The original control module in these furnaces is a White-Rodgers 50A50 controller.

Integrated Furnace Control
Code Description
On Flame sensed with no call for heat
1 Lockout due to failed ignition
2 Pressure switch stuck closed
3 Pressure switch stuck open
4 Open limit
5 Missing jumper wire
6 Reversed 115V or 24V polarity
7 Low flame signal
8 Problem with igniter circuit
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Article ID: 665
Last updated: 21 Dec, 2020
Revision: 3
Access: Public
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