Coleman DGAA056BDTA Furnace Error Codes

Single Stage Gas Furnace | Control Board: Integrated Furnace Control Board

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Disclaimer

This information is for reference purposes only and does not guarantee accuracy or completeness. Always consult your owner's manual and a licensed HVAC technician for diagnosis and repair. Any actions taken based on this information are at your own risk.

All Error Codes

Code	Name	Severity	DIY?
Normal Operation	Normal Operation	Info	—	→
Ignition Failure	Ignition Failure	Medium	✗ Call a pro	→
Pressure Switch Stuck Closed	Pressure Switch Stuck Closed	Medium	✗ Call a pro	→
Pressure Switch Failed to Close	Pressure Switch Failed to Close	Medium	✗ Call a pro	→
Limit Switch Open	Limit Switch Open	Medium	✗ Call a pro	→
Gas Flow With No Call for Heat	Gas Flow With No Call for Heat	Critical	✗ Call a pro	→
Reverse Polarity	Reverse Polarity	Critical	✗ Call a pro	→
Internal Control Failure	Internal Control Failure	Critical	✗ Call a pro	→

How to Read the Error Code

Single GREEN LED located behind a clear view port in the blower compartment door. Flash codes 1 through 6: LED turns ON for 1 second and OFF for 1 second, repeated for the code number. All flash code sequences broken by a 2-second OFF period. This is a DIFFERENT system from York TM9V/TM9T — Coleman DGAA uses only a single green LED with flash counts, NOT multi-color LEDs. The control includes a 60-minute automatic watchdog reset from lockout for faults 1, 3, 4 and Steady On.

About This Model

The Coleman DGAA056BDTA is a single stage gas furnace using the Integrated Furnace Control Board-series integrated furnace control (IFC) board.