Just got home last night, to find one of our furnaces not working. We had a funeral to attend out of State. Brother in-law 62 retired military Air Force, and the US Army. He died the day after Thanksgiving and we were gone three days two nights.

When we got home I could see the temperature was just above 50 degrees, and the setting was just under 70 degrees.

First thing I checked for power at the furnace. Had power, changed the thermostat, and then put a jumper wire for the safety switch on the bottom panel.

I changed the motor last year. I’m hoping it's nothing more then a transformer. I'm going to try to find one today. The circuit board looks ok, we changed one on the other furnace this past summer when we didn't have air.

It's a Frigidaire 100,000 BTU 90% outside air combustion. I put the furnace in about 6 or 7 years ago. We have had more trouble with furnaces we moved here 15 years ago we replaced two propane furnaces, one was in the basement with rotted pipes going through the walls and out the roof. We had carbon monoxide going through the house and the only way we found out was the condensation on the windows inside, we got rid of that furnace and put an outside air combustion furnace in. We have had problems with that one also. Any help or thoughts would be appreciated.

It's cold.

Richard