Question about Dometic Rooftop RV Air Conditioner

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Ac runs for a minute cycles off for a minute than runs for a minute than blows breaker

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That sounds like you have a electrical problem ,which is in the compressor.Its grounded out to the casin ,the fan comes on then the compressor cycles on an cuts the unit off, thens tries to crank back up but trips the breaker....

Posted on May 16, 2010

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Posted on Jan 02, 2017

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DOMETIC DUOTHERM KICKS THE BREAKER MAY RUN FOR A DAY OR MAY RUN FOR 8 HOURS BEFORE IT DOES IT IN MILD OR HOT WEATHER. ALREADY REPLACED BREAKER AND MADE SURE WIRES ARE TIGHTNED. HELP PLEASE.


If all appears OK, no noise, good cooling suggest check thermostat. If the thermostat is allowing the compressor to short cycle, restart under load the breaker would be expected to blow do to overloading the compressor.

There is usually a 5 minute time delay in the thermostat that prevents this.

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My rooftop a/c unit makes a compressor noise as soon I as plug in my travel trailer. It's a 2009 Outback Sydney edition 310 bhs with a dometic a/c unit I believe. basically with the thermometer switch to...


The system blows cold air when turned to on position but also makes that sound between cycles

NOTE THE ON / AUTO SWITCH BETWEEN GREEN,FAN AND YELLOW ,COOL TERMINALS ON THE THERMOSTAT,
THE FAN SWITCH NORMALLY CLOSED GOES TO LOW, HEAT SPEED, WHILE THE NORMALLY OPEN GOES TO THE HIGH SPEED, COLING SPEED.
BY TURNING FAN ON NOTHING BUT FAN SHOULD RUN..

SWITCHING THE BREAKER TO OFF PRECLUDES THE UNIT FROM DOING ANYTHING !

WHAT CAN IT DO WITH NO POWER!
I switch the breaker to the off position when not using the a/c in order to keep this cycle from occurring. A

Sep 16, 2013 | Dometic Rooftop RV Air Conditioner

1 Answer

Ac works 5minutes trips breaker fan works on fan onley


replace capacitors, tighten electrical connections at panel.

Sep 03, 2012 | Dometic Rooftop RV Air Conditioner

1 Answer

I have a goodman CKJ42-1B air cond. unit. It keep tripping my AC breaker although continues to blow air - just not cool air. Once I turn OFF then ON the breaker the AC works fine for about a day. Then...


try cleani ng the unit outside with your garden hose first .sounds like its kinda dirty .the dirty er the coil is the higher the amp draw is when it is running .what size is the breaker in the box .thats a 3 an a half ton condensor

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1 Answer

AC runs for 5 minutes and then circuit breaker


What else do you have running on hydro while AC is running? Such as coffee maker, microwave, water heater, fridge. That 30 amp breaker is your main breaker I assume, or breaker on pole your plugged in to. Keep in mind your AC will normally draw approx. 15-17+ amps momentarily when compressor kicks in to cool, then drop back to 12-15 amps when running normal. If your AC is drawing too much current, then you would only normally trip 20 amp breaker for AC in your panel. Try switching other appliances to gas operation while running AC, such as water heater, and fridge. Make sure incoming voltage is up to specs as well . (115-120 volts)
If water heater takes 5-8 amps, and fridge takes same when they are calling for power, you'll be close or over the 20amp mark when you consider your on board converter etc. as well. That only leaves approx 10 amps for AC that requires approx 15 amps to run, and up to 20amps when compressor kicks in. If you switch all those other items over to propane, and it still happens, then a current draw test should be done on AC unit to see if perhaps a capacitor is faulty, or possible compressor faulty.

Jul 22, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

I have a coleman ac that cycles on and off , the


your system is shutting off on low pressure, you need to get it looked at to find a refrigerant leak

Jun 22, 2009 | Heating & Cooling

1 Answer

Ac blowing breaker


The unit will draw more current when hot. Check rating of the breaker against the rating recommended by the manufacturer.

Jun 16, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Keeps tripping breaker when running ac


you need to check that the breaker it rated high enough for the ac unit

Jun 04, 2009 | Dometic Rooftop RV Air Conditioner

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