Originally Posted by Ross5
Of course this happens when I am trying to driveway camp because we have our kitchen torn out and it is snowing!
To save your driveway camping, can you get to a big discount store and pick up a couple of 15 amp heaters? Even if you can spell them one at a time, in BR and LR you can keep it livable. I think you've done everything possible from the outside of the unit to locate the problem. Inside there is a ignitor, makes popping sound, a sail or flow switch should operate gas valve if fan is pumping enough air and last of all a printed circuit board which controls all the above functions. The furnace will most likely be removed for any of these not working. The board is a common failure.