Question about Dometic Rooftop RV Air Conditioner

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This is a duo derm roof top air conditioner, possible compressor freezing up

The compressor is not coming on, how can you fix or should I invest in a new compressor or just get a new air. Duo derm roof top air, never used had it for 3 years

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If the compressor is not even trying to start you have an electrical problem in the circuit for the compressor. The thermostat could be open and not supplying power to the compressor or the thermal overload device could be open.

Posted on Nov 06, 2008

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Posted on Jan 02, 2017

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1 Answer

Duo therm roof top camper a/c. fan runs but compressor stopped kicking on all of a sudden. replaced both capacitors; getting 110 to compressor but it still wont kick on


Hi,
Sounds like the compressor is toast...if the caps have been changed and there is voltage there, you have done all you can...replace the compressor or buy new...

heatman101

Sep 01, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

I have a Duo-Therm roof top. The compressor wont shut off. When the stat is satisfied the fan stops but not the compressor. I pulled the metal control box but didnt see a real set of contacts. Where are...


Trace the wires from the compressor back to where they come from. They should be coming from a contactor or from the circuit board. It's possible the relay is built into the circuit board (it will look like a little black box on the board. Let me know what you find.

Jun 08, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

I have a Duo Therm Roof top Camper air conditioner


how old is unit and does it have refrigerant in it

May 30, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Fan will not come on


maybe the capacitor for fan was already busted try to check that.

May 17, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Have Duo Therm roof mount A/C. Fan runs but when compressor tries to come on it just has a hum sound for about 10 seconds then after a short period of time it tries again but will not kick on


It sounds like the compressor is locked up. You can try a start boost or hard start kit but once this starts the compressor is on it's way out.

Feb 25, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

DUO DERM AIR CONDITIONER


when the cmpressor freeze up. unless you have some machenic know how, it is pretty much useless to anyone. even you can rebuild it. the cost for the parts is more than a new one.

Nov 06, 2008 | Dometic Rooftop RV Air Conditioner

1 Answer

DUO DERM ROOF TOP AIR


yes , this can happen if it sets to long , thats why even cars pumps are engaged when even the heat is turned on , to keep the compressor from siezing up

Nov 06, 2008 | Dometic Rooftop RV Air Conditioner

1 Answer

Duo therm roof top a/c


Sounds like 1 of 3. Blower motor capacitor, relay or thermostat. Try to run fan only if that is an option and see.

Jun 01, 2008 | Dometic Rooftop RV Air Conditioner

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