I have a problem with the fan short cycling when the house is cool. The
house may be around 65 and the furnace kicks on and then the fan kicks
on and off in maybe 30 second cycles for maybe 10 minutes and then
finally runs till the house is warm. It does this a little when the
house is warm.
Interthem gas forced air heat only in a doublewide manufactured house.
This worked fine in its early years and gradually developed this
problem and gradually getting worse.
Had a licensed furnace guy service it and said everything was fine but
maybe the fan switch which he replaced (with a t-o-d60t82 f110-20f).
Couldn't test it then because it was a warm day and it didn't exhibit
Called him back and he said to check from the roof for anything
blocking air in or out (a two layer flue pipe). Nothing there.
Flame stays steady and seems to be fine.
I just want to get some input to minimize troubleshooting time with the
Just for laughs I should switch to electric heaters. With electric at
7cent/kwhr and propane at 2.15 I'd be better off with electric!