Atwood Hydroflame 8531-II furnace issues
HELLO. New to the forum. I have the above noted furnace in my 93 Ford E350 class C. Problem: The furnace comes on. Fan starts and goes through it's evacuation of fumes process, solenoid clicks an...
Forum Discussion
The only other things to check:
Gas pressure at furnace with at least 50% of other gas appliances ON....needs to be 11" WC (minimum pressure for furnace operation)
Bad flame sensing ire between electrode and circuit board.......it can supply the high voltage needed for ignition but if it is grounding or not making good contact the milli-volt flame proving signal can't get to circuit board.
Part number 33661....but may not be available any longer?
Circuit board.......pull and have it bench tested
Exhaust blocked
Gasket leaks
Heat exchanger warped/cracked
Gas pressure at furnace with at least 50% of other gas appliances ON....needs to be 11" WC (minimum pressure for furnace operation)
Bad flame sensing ire between electrode and circuit board.......it can supply the high voltage needed for ignition but if it is grounding or not making good contact the milli-volt flame proving signal can't get to circuit board.
Part number 33661....but may not be available any longer?
Circuit board.......pull and have it bench tested
Exhaust blocked
Gasket leaks
Heat exchanger warped/cracked
