Question about Dometic Rooftop RV Air Conditioner
If you have no leds, then you have a power supply problem. I am assuming that you have the Dometic Electronic Control Thermostat with the ribbon cable connection. Check for 12V power at the control board in the air conditioner, Red 12V+ and Black 12V-. Make sure polarity is correct. If you have power there then check the number 1 and number 10 pins on the ribbon. The voltage should be the same. If they are not, then you have a bad control board, not thermostat.
Hope this helps,
Posted on Jul 03, 2009
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Posted on Jan 02, 2017
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