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Old 10-03-2017, 11:52 AM   #8
Carl n Susan
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Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,369
M.O.C. #4831
This is a common complaint due to a "feature" of the Dometic thermostat. I seem to remember the manual actually documents this behavior but I don't recall the specific reference.

Anyway, these systems can have the fan running on the A/C if the system calls for heat and the fan setting on the thermostat is set to anything other than AUTO
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Carl (n Susan)
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2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB

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