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Old 12-25-2019, 01:53 PM   #1
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No Furnace or Air Condition ?

I have a 1998 Coachmen Santerta and i have no furnace or aircondition control. as in they do not work.also the overhead 12 volt lights in the dinning area and the one forward of that one will not come on. I have determined that the 12 volts or 7.5 volts control is not getting to the thermostat. all other a/c and 12 volts are normal as far as i can tell. The wires going to the thermostat ar very tiny wires. Where do they go ? How can i troubleshoot this problem? does any one have a wireing diagram for this part? Any help would be appreciated.

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Old 12-25-2019, 03:00 PM   #2
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Check all of your 12v fuses on the main panel. The 12 volt power feed goes to the a/c unit control board and then the small wires run down to the thermostat.

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Old 12-25-2019, 04:22 PM   #3
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I believe the T Stat power comes from the heater.

As mentioned, look at the 12 volt fuses.
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Old 12-25-2019, 07:22 PM   #4
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Operates from 12 VDC power. Check all of your fuses and check battery voltage at the batteries and the converter.

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ace, air, furnace

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