Furnace misbehaving.
Was shoveling snow around the trailer today " 2020 Outback " and heard the furnace cycle without ignition. Ran inside and turned thermostat up and same result. Ran the stove burners for couple mi...
Forum Discussion
Air in the lines is a common Suggestion and not all that likely.
However there are failure modes where it may take a few tries to fire up.
I pulled several hairs out diagnosing mine. Turned out to be a bad control board (NOT suggesting that's your problems) there is an entire list of things to check.
Twice (and that was one. My parent's house furnace the other) When I checked the ignightor spark gap I was amazed It was like 4 times what it was supposed to be (READ THE MANUAL PLEASE) I reset and problems vanished. Twice.. Alas on the RV they returned and yes I know why (Bad design the wide gap damaged the board) If you do need a new board.. Dinosaur boards made my replacement. As a trained electronics type I was impressed with their board. Very well built.
However there are failure modes where it may take a few tries to fire up.
I pulled several hairs out diagnosing mine. Turned out to be a bad control board (NOT suggesting that's your problems) there is an entire list of things to check.
Twice (and that was one. My parent's house furnace the other) When I checked the ignightor spark gap I was amazed It was like 4 times what it was supposed to be (READ THE MANUAL PLEASE) I reset and problems vanished. Twice.. Alas on the RV they returned and yes I know why (Bad design the wide gap damaged the board) If you do need a new board.. Dinosaur boards made my replacement. As a trained electronics type I was impressed with their board. Very well built.
