Quote:
Originally Posted by Gonefishing
Yep seems furnace problems are common. I’m having one now also. Mine is only when trying to use gas. Comes on and after 15-20 seconds cuts off. Everyone tells me it’s the sail switch. Bought new switch replaced it same thing. What I don’t understand if I remove the sail switch from the motor and hold it in my hand the sail will lay against the switch and furnace will run fine. My thought was the fan wasn’t pushing enough air to keep the sail against the switch when installed. Held my hand over the hole where the sail goes and the fan is pushing air a good 2 inches from the motor. So I would think that’s enough to close the sail against the switch. I finally gave up and have a tech coming out to check it out. I will post the results when it is fixed.
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Could also be a clogged/dirty air return or vent if the fan isnt getting enough mass to move it properly...
In any case my problem has elements of your so interested to find out what your fix is going to be...