Question about Dometic Rooftop RV Air Conditioner
Have you checked if the condenser fan motor is running? If it isn't then the head pressure will become to high and shut down your condenser unit up on the roof. After a while the clixon will reset itself and the unit will come on again until the head pressure builds up again.
Hope this helps you.
Posted on Jul 20, 2014
THE OUTSIDE FAN MOTOR MIGHT NOT BE WORKING CAUSING THE COMPRESSOR TO GET HOT AND TRIP THE INTERNAL OVERLOAD IN THE COMPRESSOR - IF THE UNIT IS LOW IN FREON SAME RESULTS - WHEN UNIT IS FIRST TURNED ON DOES IT BLOW COLD AIR OR DOES THE AIR NOR FEEL COOL - JUST COOL AIR COULD BE LOW FREON - COLD THEN WARMS UP IS FAN PROBLEM
Posted on Jul 19, 2014
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Posted on Jan 02, 2017
You need to check the cable that connects the Comfort Control to the upper unit. This cable has four wires and should have continuity through all wires. If there is a break in one of the wires or a short, it will cause the CCC to fail and report an error. If all this is fine, then you have a bad control unit in the main unit. Try unplugging the rear unit from the control board and then resetting the Tstat, if this works, then there is a communication problem between the front AC control board and the rear AC control board or the rear control board is bad. Check the cable between the front and rear AC for OK. If it is alright, then you have a bad control unit in the front unit.
Another quick check is to remove the inner shroud from the front unit pull down the control box. Remove the access cover and view the dip switch panel located inside. It should be labeled Zone 1 Zone 2 etc...try turning off Zone 2 and furnace and resetting the tstat. If this works then turn zone 2 on and reset the tstat. If this is ok, then turn the furnace on and reset again. If this works, then all should be ok. If one of these fails, then you can pinpoint the problem there and move forward.
Hope this helps,
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Posted on Jul 05, 2009
When the cooling slows down, but water is still running off, usually something is icing up. You can turn the unit off, and let it thaw, and try again. Sometimes, if the humidity is high, this is more pronounced. It sounds like you are low on refrigerant. That implies that you have a slight leak. You should have the unit serviced, and the leak repaired.
Best regards, --W/D--
Posted on Aug 01, 2009
use relays to combine the to and isolate from each other or observing polarity's, you should be able to parallel the connections from your thermostat
Posted on Jan 28, 2010
First lets address the heating issue. These are not furnaces but are known as "Chill Chasers" and are not designed to "heat" your RV Attempting to use them as a whole coach heater will burn them up in short order.
Your A/C sounds like the coils are freezing up. There is a small probe that is placed into the coils. you can see it from under the unit if you remove the interior cover - a little 1/8" in dia. silver piece flattened on one end to slide between the coil fins with a wire going back to the control box
It may have fallen out
Posted on Mar 08, 2010
Your choices are another Dometic or a Coleman
I prefer the Coleman But the amount of extra cooling you will get by stepping up to a 15K unit will probability not be worth the added cost
Posted on Mar 11, 2010
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