Hmm...my furnace won't go on, not even the fan. The programmable thermostat has low batteries. Would that cause a problem? There are only 2 wires going to it from the furnace (red and white) connected to RH and W respectively. Should I see any DC voltage on those wires?
24V on those 2 wires at the subbase.to run heat...unscrew one and connect it to the other terminal,check the emergency switch and the CB panel..all ON.....you should have the burner ON.can you read voltage check the transformer secondary right off the color wires(yellow/blue)black/white is primary into it 115V