To summarize and be more clear the current process of the furnace is:
-Turn on thermostat, fan receives power, fan starts to run.
-After the fan runs for about 20 seconds I can hear and smell the propane valves opening.
-DO NOT hear or see the electrode sparking.
-Furnace goes through 3 cycles of releasing propane then attempting to spark electrode.
-After 3 attempts, it goes into "ignition lockout mode" with a 3-blink error code.
I went through this when I bought mine, that's exactly what it was doing. it ended up being bugs and maybe the board (more on that later) , I had to buy a small shop vac with some small attachments so I could pull the burner and get in there good and I also had to blow out the exhaust path with compressed air quite a bit, so that something you can make sure is good and clean as I had to do this every trip for about 4 trips because the drive between campground would knock more stuff loose. I got it working good for one season but the blower motor would squeal until it warmed up, then one trip to Banff it started squealing all the time and we couldn't use it
my board did bite the ghost also, conveniently while I was changing the blowing motor to get rid of the squealing, went to test it and it would start on the bench but not when we put it in the camper, then it wouldn't even start on the bench. it was replaced with a dinosaur board which I was very happy with.
