How do I fix my Furnace?
first thing to do turn off the furnace at the switch remove the thermostat from the wall jumper the red and white wires to gether now turn the switch back on if furnace lites then u have a bad thermo.if not then u may have a bad switch in the safety circut also make sure the door is in place because there is a door interlock that keeps the furnace in lockout .follow the wires from the interlock to the other safety switch’s and see if any have a red button poped
