Question about Dometic Rooftop RV Air Conditioner

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I have an Dometic rooftop a/c on my travel trailer, as you look into the unit from the inside, you notice the coils are freezing, this in turn shuts off the compressor, what is the problem.

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Your unit either is not correctly charged and has leaked refrigerant or there is a restriction in the metering device.

Posted on Oct 13, 2010

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2 Answers

I have water drips from the filter on my dometic ac. Then when you change the settings or turn unit off it drains more water. I noticed a lot of condensation in the area of the coil foam housing


Sounds like unit is too small or there is too high of humidity. An A/C unit draws water out of the air as it absorbs the heat from the room. If the room is too big or there is too high of humidity the evaporator will freeze the moister and ice will build up then it will drip when turned off as the ice melts. As a fix, You can get a bigger unit, use a dehumidifier ( which works the same as A/C), or start the A/C at a warmer temp.and turn down gradually as air moisture disappears.

Sep 16, 2014 | Dometic Rooftop RV Air Conditioner

1 Answer

I have dometic AC 630515.331. I was having a problem with it cooling properly. A service guy checked it out and said the cold control wasnt working properly. Im trying to replace it but I dont see a cold...


When you say, wasn't cooling properly, could you give more details such as, cooling would not shut off, cooling would cut out before trailer was cool, fins/coils were frosting or freezing up. Compressor was kicking out and in too much or any other symptom you notice. All will help with proper diagnosis.

Apr 02, 2013 | Dometic Rooftop RV Air Conditioner

2 Answers

Own 2005 27.5' Wildwood Trailer with a Dometic a/c ducted unit. Last few times out it freezes up initially first few times (pocked circuit breaker once then I turned it off after few minutes second time)....


Don't block off any ceiling ducts and see what happens. If you've closed off any forced air ducts, the unit will freeze up, if too many are closed off. Also, if you shut unit off (compressor) give it 5 or 10 minutes before you turn it back on.

May 21, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

I have a dometic Roof Top Rv Air Condtioner and the evaporator coil is freezing up. Could the unit be low on freon. I also noticed the evaporator coil had a noticable amount of dust build up. My thought...


It freezes because of a lack of air flow ... and/or ... colmplicating ... high demand with high humidity.

Even worse is running the roof top with the door open in the summer (I see this all the time in the RV park where I work - I'm not saying you are doing this - but I see it all the time. What the heck, the typical transient camper is not paying for the electricity - let it run!)

I hope this helps you

thanks for your interest in FixYa.com

a

Dec 11, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

DOES MY COLEMAN ROOTOP HAVE FILTER ON THE OUTSIDE (ROOFTOP)


You dont have a filter on top unit but you need to have your fan impeller and condensing coil clean regularly about once a year and more when your on dusty area.

Aug 21, 2009 | Dometic Rooftop RV Air Conditioner

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