I can't get my furnace to turn on. If I have the selector set on heat and the fan on the on position I can hear the relay click when I move the temperature up and down, if the fan is set on auto I h...
You really need to measure voltage with a meter at the furnace board. If the time delay relay has failed or doesn't have power, the blower will not turn. Blower no turnee, furnace no workee.