Furnace Connections
While replacing the board on my 8535-IV furnace the red, white and blue wires detached from the plug. The board is labeled Air,TH,NC, VI,Test,Ground. The yellow wire did not detach and matches up with...
Forum Discussion
Thanks for the input guys. My original notes indicated WHITE to AIR, BLUE to TH, open slot to NC, RED to VI, open slot to TEST, YELLOW to GROUND. NOW here is where it gets interesting? The flame ignites for no more than 5 seconds with the aforementioned wiring. The only way to make the burner stay lit is to run RED to the first position marked AIR and put the WHITE in the third position on the board marked NC. The furnace works great but there is a fault lite every 12 seconds indicating a problem with the sail switch. The furnace has only been run about 2 hours since I bought the trailer new because it would hardly ever ignite. I have not been able to obtain any diagram of the wiring online. I am using oil filled radiators in the meantime. They provide quiet constant economical heat. Looking forward to your thoughts....
