[Bob and Jeannette]

I had the same problem… twice now. It is not the sail switch but as I proved last night in the cold fixing mine it is the sail switch contacts. A little sand paper on the contacts and I had heat. FYI you can’t jump the switch wires, lol, the circuit tests for open before the blower starts to verify it’s functioning, good engineering. Dielectric grease after sanding will give you a long term solution.