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sd42176's avatar
sd42176
Explorer
Jul 04, 2013

Thermostat set on auto, turns off when turning on a light

I have a 2001 Dutchmen 31S class C. My over ac works great but lately I've been having an issue. Whether I'm on the generator or plugged in my ac while in auto mode will turn off if u turn a light on....
Class C
Bordercollie's avatar
Bordercollie
Explorer
Jul 04, 2013
Something in the circuit may be dragging your 12 volt DC power down so that turning on the light reduces power to the thermostat, or the house battery may be near dead as mentioned above.Check voltage at the battery, should be over 13 volts if converter is charging it. You may need to clean battery terminals, check electrolyte levels, add distilled water if needed to cover the plates in battery.

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