Pull the board and look at the back to see if that fried. That was my issue last time. Fro t of board looked good. Back not so much.
So the circuitry is in the black box. Apparently it’s replaced as a whole unit and they can be obtained. Not sure on the price.
After I got it going last night I cranked the thermostat up to 76 with the expectation that it would shut off and then stay warm through the night. It ran about 3 hours and then quit before the thermostat commanded the stop (I think). I opened it up and reached in and the side of the blower motor was pretty hot. Not sure how hot it’s supposed to get. If I had to guess now I would assume it’s the motor.
Called and they will have someone out by this afternoon. Have the second furnace running and it’s keeping most of the house in the upper 60s for now. Will be interesting to see what they want to charge for parts.