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Atwood heater issues

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Martkart

RVF Newbee
Joined
Mar 31, 2025
Messages
1
Hi All, Hoping someone might know something here to help me out. Have spent too much money already trying to get my damn furnace working.

I have an Atwood 8012-ii which works great some times (will run all through the night in the winter) but other times it just makes a buzzing sound and won’t run. There is also a red flashing light which doesn’t correlate to any fault code. I have a video of this below. If the heater is left off for a few hours it usually works when turned back on. I have replaced the motor, checked the continuity across the limit switch (which is fine). Has anyone got any suggestions as to what might be the issue?

 

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