Question about Dometic Rooftop RV Air Conditioner

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Overloaded generator I have a Dometic CAL 130 A/C which operates perfectly on 240V Mains supply, but when using a Honda EU20I generator the A/C puts the generator into overload mode after operating for 10-20 minutes. Using a clamp meter the A/C runs at 4.6 amps but when the problem occurs the meter amps up to 14.6 amps and the generator goes into overload mode. I was advised to change the thermostat which I have done, and it made no difference, i still have the same problem. Can someone please advise whats going on, as Dometic can't help me. The generator and the A/C have operated okay for the past 8 years, until this current issue.

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Check a see if it is when the unit is starting up when the over load happens if so you need a hard start kit

Posted on Dec 14, 2008

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I have a Honda eu2000i generator to run a Husky TAW-1524p air compressor. Initial start/run is fine but subsequent compressor restarts as demand for air is required, put the generator into overload....


If your mechanical enough to figure out how to lower the air pressure switch on the compressor it would help with start up loads. For instances if your pressure switch is set for 75 psi. Lower this to 60 psi. or as low as you can and still operate equipment. Otherwise depending what horsepower and voltage {guessing 110 vac) the motor is, I would try an Hard start capacitor for refrigerators or air conditioners. They are rated by horsepower and have a built in relay that kicks it off automatically after starting . You can find these at any appliance or a/c & heating supply house.

May 11, 2014 | Air Conditioners

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10 months ago I had my 6 year old Dometic A/C replaced by a friend who bought the new unit directly from Dometic via a Dometic employee. It worked fine the two times I use it this past winter while...


10 months ago? Do have any warranty on this?
As far as adding refrigerant. Yes - you can add some - but you need to fix the leak first, since it will be quite expensive to keep putting refrigerant in. I would first try to get the mfc repair it and if that fails I would call a serviceperson.
note: fixing a leak and re-charging the system is going to take someone 'very' knowledgable of air conditioners.
good luck!

Jun 13, 2011 | Dometic Rooftop RV Air Conditioner

1 Answer

I would like to know if my Honda 2kva generator will run my air con dometic roof top B3000


I dont think so as this will be too much for the generator which has only 2 KVA as capacity.
Though the rated power is 2 KVA it will be safe to use it only upto about 1.6KVA.
The AC will require a lot of current on start up than in running and so it might no be good to have it strained.

Sep 26, 2010 | Dometic Rooftop RV Air Conditioner

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Coleman 7300 rooftop air conditionor wont operate


When they sit allot - sometimes the fan will stick.. Take the cover off,, turn it on and see if the fan is stuck.. Spin it by hand to free it up..

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1 Answer

AC puts generator into overload mode


ac conpressor load has increased, or the air handler, i would check the blower motor first.

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Compressor short cycling


If the compressor is run off of a relay then you could install a delay timer to prevent short cycling.

http://www.climatedoctors.com/items/item.aspx?itemid=429504

Jun 04, 2008 | Dometic Air Conditioners

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