Coleman Furnace Error Code 1 FLASH

Where this code is documented

1 manual in the MyPros+ library documents this code for Coleman furnace.

Models covered by the manuals that document this code

• DGAA077BDTB

• 2 FLASHCombustion air pressure switch closed; the normally open…
• 3 FLASHCombustion air pressure switch failed to close; the…
• 4 FLASHLimit switch open; a primary or auxiliary limit switch has…
• 5 FLASHGas flow detected with no call for heat.
• RAPID FLASHESReverse line voltage polarity detected; both heating and…
• STEADY ONNormal operation; if the LED stays on continuously during a…