Coleman DGAA056BDTA Furnace Error Codes

Single Stage Gas Furnace | Control Board: Integrated Ignition Control

Not your model? View all Coleman models →

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?
1 Flash	Ignition Failure	High	✗ Call a pro	→
2 Flashes	Combustion Air Pressure Switch Closed	High	✗ Call a pro	→
3 Flashes	Combustion Air Pressure Switch Failed to Close	High	✗ Call a pro	→
4 Flashes	Limit Switch Open	High	✓ Yes	→
5 Flashes	Gas Flow With No Call for Heat	High	✗ Call a pro	→
Rapid Flashes	Reverse Polarity	High	✗ Call a pro	→
Steady On	Normal Operation	Info	—	→

How to Read the Error Code

The furnace has built-in, self diagnostic capability. If a system problem occurs, a fault code is shown by a blinking green LED. It is located behind a clear view port in the blower compartment door. DO NOT turn off furnace power as this action will clear the control's memory of the fault. Flash sequence codes 1 through 6 are as follows: LED will turn "on" for one second and "off" for one second. This pattern will be repeated the number of times equal to the code. All flash code sequences are broken by a 2 second "off" period.

About This Model

The Coleman DGAA056BDTA is a single stage gas furnace using the Integrated Ignition Control control board.