Furnace Problem
When we turn our furnace on, it will click on and stay on for maybe 45 sec then shut off and not come back on. Any suggestion to what the problem may be? Thanks so much :)
Forum Discussion
I've had luck with flaky ignition of furnaces & WHs by working the wire connector on the igniter board. Unplug and plug it together a few times and if you have some contact cleaner, use it there. The flame sense is the resistance change between the electrodes by the flame plasma. A small resistance in the circuit disrupts it.
