Question about Dometic Rooftop RV Air Conditioner

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A/c will not continue to cool.. Starts fine, runs fine.. but shuts down cooling ( comp shuts off but fan still runs) after anywhere from 5 min to multiple hours. No circuit breakers or fuses blow. CAN usually reset by cycling wall thermostat if that does not work can unplug 12v. connection to thermostat and it will most often start cooling again when asking via the thermostat. Have replaced computer board in a/c unit on roof and wall thermostat

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One amateur test is to place your hand on the compressor and see if it
is too hot to hold your hand on it. You may have a restricted condenser coil
If it is too hot then the condenser coil is restricted inside the unit
if not be sure and clean condenser coils with good coil cleaner.
You can put a fan on the compressor and see if it runs for another test to confirm it
If this was helpful please rate me.

Leo Ponder Appliance-Tyler,Texas
imufo2@sbcglobal.net

Posted on Aug 22, 2010

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