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Ac runs 30min. then kicks breaker - Dometic Rooftop RV Air Conditioner

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What are you plugged in to? When was unit last cleaned, as in Evaporator, condensor, etc. Where and what kind of temperatures are you in?

Posted on Jan 27, 2013

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Posted on Jan 02, 2017

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Rear ac unit keeps kicking off says low power the fan will run on auto soon as u kick on ac or heat it kick of and says low power front unit runs good dometic unit


Check your breakers and make sure you are getting the required voltage. Sounds like you are not getting the correct voltage to the system.

Jul 13, 2014 | Heating & Cooling

1 Answer

Why does AC Duo-Therm thermost throw the breaker and needs set to approx 55/50 to run ?


`Try changing the breaker some times they get weak and will trip at start up. Also check for bare wire shorting out. Then check capacitor then fan motor spin blades to see if they spin easy and that bearings are not bad.. make sure all connections are tight with no corrosion. These problems show up more with short cycling then with long.

Jun 27, 2014 | Dometic Rooftop RV Air Conditioner

1 Answer

I started the generator it will run in 110 side but when I kick on the 240/120 switch the AC breaker kicks out... I just bought this used from a second hand store.


thers a shorrt in the unit try a volt metor before breaker. see what you got there is a surlly a draw or short in the 240 volt side.should be ok if you use just the 110.used is used

Mar 21, 2013 | Electrical Supplies

1 Answer

On my 9 hp onan genset it runs fine but the 20 amp breaker on makes it shut down is there short or abad breaker


To determine if it is from the breaker use a

Tong Tester


These would indicate what current is being consumed by the load.

Jun 28, 2012 | Watts Onan Portable Generator - 5000 ,...

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

2 Answers

Keeps kicking breaker


Your unit is pulling too much power which is popping the circuit breaker. Either the compressor motor or Fan motor has a problem and you need a pro here. Drawing excessive electrical current is not good and you can do even more damage to your unit by continuing to try and run it!

Jul 19, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

My RC air conditioner (Duotherm) kicks the circuit breaker every time I turn it on. It used to kick the circuit breaker every so often, but lately it kicks it immediately if I try to turn on the AC.


Try replaceing the start or run capacitor to the compressor. If no help you can install a start assist capacitor, it helps to start a tight compressor.

Sep 10, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Kohler 12res AC breaker flipping with no error listed


wat size c/breaker
6600 divide 240 = amp
rule of thumb

Aug 16, 2009 | Kohler 12 kW Emergency Power System -...

1 Answer

AC Kicking OFF Breaker


Sounds like you have a problem with your compressor. If the beaker trips the second the compressor tries to come on hen it is shorted. If it takes a couple of seconds, then your compressor is locked up.
seth

Jul 03, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Ac Problems


You must have too many things running on that circuit. Check your connection to the power box.Loose connection on the receptacle can cause the breaker to trip or too many things running on the same circuit. If the breaker is old it might need to be replaced.

May 10, 2009 | Dometic Rooftop RV Air Conditioner

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