Coleman 7900 Series Heating issues

Questions about repairs and parts for Coleman furnaces, air conditioners and heat pumps for manufactured homes. Click here for Coleman parts.

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ericmassey
Posts: 2
Joined: Sat Oct 06, 2012 12:34 pm

Sat Oct 06, 2012 12:43 pm

i have a Coleman Furnace, Last night i lit the pilot, it took a while for the funace to kick on even with the thermostat kicked way up. It finally kicked in, ran for 30 seconds or so, and shut off. it did this continuously for a while. I cleaned out the A coil, filters are clean, thermostat is working. you can tell when it hits the temp on the thermostat, the burner ignites, but it wont kick on the blower. I turned the furnace to continuous, and the blower comes on, so i know it works. I think there is something preventing communication telling the blower that the burner is ready and to flip on the fan

Specs:

Model: 7975a856

Found no date on the furnace. The mobile home is a 1990, so it may be original.


DaleM
Posts: 385
Joined: Wed Apr 07, 2010 10:07 am

Sun Oct 07, 2012 2:40 pm

Is the flame real small when the furnace is ON? If so I suspect a web in your burner oriface.

ericmassey
Posts: 2
Joined: Sat Oct 06, 2012 12:34 pm

Mon Oct 08, 2012 9:48 am

Dale, you hit the nail on the head. 80 dollars and two minutes work. Thats all it was

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