I'm trying to get info on a DGAA077BDTA colman furnace
It is blinking 4 times and say's something like high limit out?
This isn't my house just trying to help out
Any thought or suggestions?
dd
4 flashes from circuit board on DGAA
Answer
Steady light on - normal operation.
One flash - ignition failure.
Two flashes - combustion air switch stuck closed.
Three flashes - combustion air switch failed to close.
Four flashes - limit switch open.
Five flashes - gas valve energized with no call for heat.
Rapid flashing - reversed polarity.
Note: Color of light is green.
hvac1000
Steady light on - normal operation.
One flash - ignition failure.
Two flashes - combustion air switch stuck closed.
Three flashes - combustion air switch failed to close.
Four flashes - limit switch open.
Five flashes - gas valve energized with no call for heat.
Rapid flashing - reversed polarity.
Note: Color of light is green.
hvac1000
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