Furnace won't ignite
this has happened to me when the propane has run out. I have had to cycle the furnace on and off a few times and eventually it will come back on. From what I have read it's a safety thing. I actually posed this question to the form a few years back and received some very helpful answers.
Not sure if this is the same in your case but I had checked everything on the furnace, nothing seemed broken. After trying the suggestions I received, it worked.
2014 Sunset Trail Reserve 33BD