Actually, I found out what the problem was. We had tremendous snow fall last night and and piled up around the flue vent and it wasn't getting enough oxygen. Once I cleared the snow off the roof around the flue, it started working fine again.

I have a Coleman DGAA070BDTA Propane furnace. It has worked all winter until this morning. When turning it on, after around ten seconds I can see it start to glow through the view hole. After around 5-10 more seconds the flames appear. After around 15 seconds more the blower kicks on and the flames ...