[smquandt]

I have voltage at the switch, and voltage to both the high and low side of the switch. There is heat to the unit so the relay must be turning on the circulation pump. Next to check for bad ground or loose connection at the fan. Does anyone know if there is a limit switch (AKA Snap Disk) inside the unit? I had to replace one of those on my Bluebird's system, so I will check that as well. We might wait to get home in May before going any farther. Looks like the only way to access the unit is to take out the sofa.