Furnace Blower Question
I apologize if I've asked this before. I searched my old threads and didn't see it. I'm looking to fix this thing this week if possible. It's a 1984-era Suburban 35k BTU furnace. From a cold start,...
Forum Discussion
The blower motor is suppose to run to activate the sail switch which tells the circuit board that it is ok to open the gas valve and activate the igniter. I am betting that your problem is the thermostat, it is the cheapest part to replace. If that doesn't fix it then you need to decide how to spend $4-500. My wife and I decided to go with a new new 40K Suburban in place of our 30K Suburban. Our repair place gets $90 an hour for labor plus parts so we opted for new as ours had been repaired at least once by the PO. If you decide to go with a new furnace, we got ours at PPL.
