Coleman model DGAA056BDTA Not firing

[Michaeljcheaney]

Good morning guys:

My 2004ish model DGAA056BDTA furnace is not firing.
Serial number #020701058

I have a steady on green light on the fault panel. -which indicates no problems right?-

When I turn the thermostat up, nothing happens to the furnace, however when I turn the switch from heat to off to heat again, the furnace starts cycling for about 3 minutes then shuts off again.

It also appears that I do not have any sort of pilot light or ignition source. Could the ignition source switch be bad?

any suggestions?

Furnace has never acted up like this before.

Michael J. Cheaney
Pewaukee WI.

[Robert]

Hi Michael,

Could be the circuit board, t-stat, etc... . You would need to test with a meter to determine if power is reaching each component.


Thanks,
Robert