My
BigFoot 25RT
furnace quit the other day. Then I remembered my AC was also a heat pump and it works down to 32 degrees.
There isn't much to these things. Just the circuit board, sail switch, limit switch, and
propane valve all controlled by the circuit board. So I followed voltage around and had intermittent power coming from the limit switch. I pulled the wires off and tightened the connectors and it started working again.
I replaced the limit switch anyway about 15 minutes before it started raining.
I ordered spares for everything except the
propane valve. I don't want to go through that again.
Linear Mode
