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Old 04-28-2015, 04:00 PM   #1
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Electrical Probem

I lost power to the 120 volt switch next to the thermostat as well as to the thermoset itself. We are on vacation and I do not have a wiring diagram with me. I have no idea of where to start looking in trouble shooting this issue. Any help will be appreciated. --Tom-- 2005 34 ft. Alpine

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Old 04-28-2015, 04:08 PM   #2
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120v switch vs 12v thermostat--should be separate issues. If switch is on shorepower side, make sure power is good elsewhere in coach--including breaker box in bathroom and GFI switch, also in bathroom. IF 120v is on inverter by-pass side [eg micro wave], make sure inverter is passng 120v shore power thru to the inverter supported circuits. 12v issue is a mystery--think thermostat is powered via 12v from the A/C units itself vice a separate fuse??????

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Old 04-28-2015, 06:21 PM   #3
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Tom, what 120 volt switch next to the thermostat? If you are referring to the security light switch that is actually a 12 volt circuit. Like has been mentioned above, the thermostat power is fed from the AC unit. Could you have gotten something, like a mouse in there chewing on the wiring? On our 2005 38' we have a cabinet behind the panel that mounts the thermostat and there is a removable panel that allows access to the rear of that panel, look for damage there.

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