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Rv circuit breaker gets hot - Dometic Rooftop RV Air Conditioner

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If it is to hot to touch then you have poor electrical connections or dirty unit circuit breakers will be warm normally but not hot

Posted on Jun 30, 2009

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Posted on Jan 02, 2017

motor1258
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SOURCE: 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.

Posted on Jul 25, 2010

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Coleman mach rv ac unit tripping breaker


If it trips the circuit breaker as soon as you turn the FAN on, suspect either a bad fan motor or a failed fan motor start capacitor. If you are able to turn the fan on but the circuit breaker trips as soon as the COMPRESSOR starts, it is possible that the compressor is seized.
If, on the other hand, the unit is tripping a GFCI (Ground Fault Circuit Interrupter) breaker or GFCI utility outlet, it is possible that neutral and hot are reversed at the outlet into which the trailer is plugged (happened to me this year at an RV park).

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I have a 1979 Southwind Fleetwood RV I need to replace the circuit breakers and or fuses located in the rear circuit breaker box unit.is there a difference between RV and home circuit breakers?


It could be if your breakerwhen you remove it says 120 volt or 240 volt than no same but if it is saying DC volts than yes different should say what it is on side of breaker or on in side of breaker box door I would think age of rv mostly 120volts

Feb 22, 2015 | Heating & Cooling

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Have an excel 5th wheel GFCI circuit breaker that popped and won't re-set. CBs are Cutlter-Hammer BR120 that I can get at Lowes. What ara the steps to remove and replace?


It should be a simple process. Make sure that all power is off to the panel and wear safety glasses. Now simply open the panel and take out the dead front that is protecting the inside of the panel. Remove the "hot" from the bad circuit breaker. The GFI breaker has a wire going to the neutral bar. You need to remove it. Then remove the breaker by pulling it out. To install simply reverse the above

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My a/c comes on fine; however, if the fan is on low it kicks the circuit breaker after a couple minutes. It works fine on high.


Feel the compressor it may be getting hot and the increased
air flow on high may cool it somewhat.
If so compressor problem or much slowed fan
Check air volume on low.
If this was helpful please rate me.
Leo Ponder Appliance-Tyler,Texas
imufo2@sbcglobal.net

Aug 06, 2010 | Dometic Rooftop RV Air Conditioner

2 Answers

RV Air Conditioner Keeps Tripping Circuit Breaker & Compressor


It sounds like the unit was miswired at the factory, since when the A/C is "off" at the thermostat, there should be no calls for cooling or for the fan to run.

You also stated the most puzzling issue, with the breaker turned "off" the same thing happens. This shouldn't happen at all, when the power breaker is turned off, there should be no power being supplied to the unit and it shouldn't be able to do anything. Very strange indeed, but likely a major error done when the RV was manufactured, or some wiring in the loom has somehow become shorted and is supplying power from another breaker/source.

I think a call to the manufacturer is in order since there is no easy solution aside from possibly rewiring the A/C circuit.

Not sure when your RV was made, but definately time to call the manufacturer and break out the wiring schematic in an attempt to isolate and resolve the problem.

Hope you find this helpful and best regards!

Aug 06, 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.

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1 Answer

Audiovox AVT2540 won't turn on


Hi,

The only possible check that could be done without removing/opening the Audiovox TV would be to check for the presence/absence of supply power/voltage depending on how the TV is powered (12VDC or 120 VAC). Normally, there would be an fuse and/or circuit breakers.for the RV's entertainment system including the TV.
The 120-volt circuit breakers and 12-volt fuses are located in the same compartment. These devices interrupt the power if the circuit is overloaded.The 120-volt circuit breakers include a 30 amp main breaker and several smaller breakers for individual circuits. If a circuit breaker is tripped, look for an overload on the circuit, then reset it by turning the breaker OFF and then turning it ON. Do not try to reset a breaker the second time without locating the overload problem. The 12-volt fuses protect individual circuits. If the circuit is overloaded, it will blow the fuse and the fuse must be replaced. Check the circuit for an overload and replace the fuse with the same type or amperage rating.

If the above checks out, then problem is internal to the unit and would require removal from its current position.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Jul 23, 2008 | Televison & Video

1 Answer

Circut Breaker trips


  • i have no experience with RV units but if it were in a house i would suspect a bad breaker or a problem with the outlet itself. breakers  only trip when the wiring is gets hot.
  • unless it is a ground fault breaker (usually on the outlet) then this would trip if the flow of electricity is grounded. ground fault breakers do go bad often.
  • i think if the refrigerator itself had a problem then it would be consistent (as far as it is pulling amps anyway). not work fine sometimes and not others. 

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