Need help troubleshooting Atwood furnace
This is the 8535 - IV DCLP on a 2006 Alfa 36 ft fifth wheeler. Furnace has worked fine since 2008 when we bought this used, but have not used the furnace very much spending our winters in South Texas...
Forum Discussion
Make sure the thermocouple/igniter is spaced correctly (1/8" I think). Re-gap the electrodes to 1/8" if too wide or too narrow. 3 flashes is lockout due to flame loss. If the thermocouple safety is not heated enough by the flame, it will cut off the gas. Your control board if probably OK.
