If the furnace is not working at all, not clicking, not turning on, the first question to answer is: Is it getting power?"... If the fuses are all good, then the next step, as Chuck posted is to go to the "furnace connection on the unit" and verify whether or not there is 12 VDC at the furnace (and while there, push the reset button). Next, if that is "all good" is to start "digging into the furnace control system, part of which is in the air conditioner (on the roof) as well as the thermostat....
But, typically, if the controls are functional, you'll get some "clicking or a fan running" in the furnace.... With all that "missing", I'd tend to focus on input power to the unit.
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
|