Have HVAC Questions? Ask an HVAC Expert for Answers
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Can you see the R and W thermostat connections at the board in the furnace?
OK get a paperclip and with the panel safety switch held down jumper across the two and hold it does the unit start up for a heat cycle?
Ok then the heat cycle seems to be starting if you keep it on does it start to heat>?
Ok that is a thermostat issue then can you get at the wires to the thermostat?
OK if you jumper R and W together and the furnace runs then you have a bad thermostat if you have power from R to C at the thermostat 24 volts
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Sure tell me what wires you have to it? COlor and location on old unit
Yep that is basic....any single Heat COOL thermostat will do....$20 thermostat will work fine.
RED-RH/RC(use jumper if not there already)