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My roof top ac for my rv was tripping the breaker after ten minutes in 110 degree heat. I was told my compressor was probaly bad. I tried it in the evening and it didnt trip the breaker ran fine could the heat be making it trip the breaker and my ac compressor in good condition.

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  • martinezbobb Jul 15, 2010

    Yes, Thanks

  • martinezbobb Jul 15, 2010

    So can I replace the windings only or do i have to replace the whole compressor.

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Your compressor most likely has the insuation on the windings breaking down with age and in the heat and the load the poor old compressor was gasping a bit to say the least and running a slight bit hot which causes the windings to short across which will blow the trip ,so yes your advice isnt out of charecter or trying to pull the wool over your eyes

Posted on Jul 15, 2010

  • martinezbobb Jul 15, 2010

    So can i replace the windings or do i have to replace the whole compressor.

  • Colin Stickland
    Colin Stickland Jul 16, 2010

    no i think you will find that this model uses a unit similar to a refridgerator where its a sealed unit

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Was working fine then just stopped runningm didn't slow down or make any noise just stopped like a fuse blew. Is there a reset button on main unit on roof


Hi, there are no reset buttons on the roof, but find the breaker panel in your RV, and you will find a breaker that is most likely tripped. You will need to reset it by turning it off and back on very firm. It should be about a 20 amp breaker. On the roof , there may also be a disconnect box with either a breaker or fuses also. Check the one inside the RV first, it is there somewhere. If it continues to trip the breaker, we will have to check to see if you have a problem with the compressor, condenser fan motor up top, and blower motor inside to see what is taking place. You may have a dirty coil up top that needs a good washing out as this will cause the unit to have high internal head pressures and will take out the compressor and keep tripping the breakers. Keep me posted on what you find and please don't forget to rate me as I know you will be kind. I will check back in with you on this to see how you are doing. It is 11:00p.m. here, so I will check on you in the a. m. This should solve your problem if you remove the top and make sure the condenser motor is running along with the compressor. Then kill the power again to wash this coil out. Please keep me posted.
Sincerely,
Shastalaker7
A/C, Heating, & Refrigeration Contractor

Aug 29, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

Breaker breaks


This unit may have an internal overload mounted on top of the compressor. You would have to get to the
compressor to find out and it maybe faulty. That may
explain why the compressor comes on later on, this
overload protects the compressor from getting hot.

When you trip the breaker and then reset it again only to see it trip again almost sounds like a direct short or loose wire. It could also mean that your
capacitor needs to be replaced or that you need a hard start kit and the unit needs a good cleaning.

Try just operating the fan and see if it trips the breaker, if it does then either the blower motor is bad
or it is still the capacitor.

Jun 25, 2010 | Dometic Rooftop RV Air Conditioner

2 Answers

Rooftop RV Air Conditioner: replaced capacitor on dometic 59516-531 steal trip...


You need to borrow a clamp on style amp gauge, and check amp draw on black wire in box where hydro wires connect. (PLEASE, be careful, and if not experienced in this type of test, don't try it, due to likelihood of getting a shock. ) If it's the compressor kicking in that's causing the breaker to trip, and capacitor is good, then it's usually a problem with either low incoming (supply) 110-120 AC voltage, which will cause high amperage draw, or compressor on it's way out causing high amp draw. If it's only drawing 15-18 amps, and your tripping a 20 amp breaker, then breaker is getting weak.

May 18, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

AC Runs for about 10 minute then trips breaker


is your breaker is ok or lose concation is good.if this both is good than cheek his overload.

Jul 20, 2009 | Dometic Rooftop RV Air Conditioner

2 Answers

Roof top A/c on a 33 1/3 foot RV. When


How long since the evaporator coils & fins, as well as condenser coils & fins have been thoroughly cleaned? Everything works harder when it can't get proper air flow. I have seen units that owners swear they cleaned well, but had no idea, they had to vacuum &/or wash down the coils way up inside the area that the return air filters are. If you take a flashlight & stand on a small ladder or something, and shine it way up to top, you'll see what I'm talking about. Even when filters are kept clean, over years, dust collects up there & add moisture to that & you get like mud clogging up those coils. If your up to it, or have someone who is, or will, going up on the roof and remove cover, I can tell you proper way to clean entire upper unit so that it has a chance of running as cool & efficient as possible. It doesn't cost anything other than some time, and a little elbow grease. Let me know.

Jul 19, 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

1 Answer

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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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Coleman (RVP) 7000 AC unit compressor problem


I had a problem with my coleman mach 3 AC, we were at an RV park up at lake shasta CA and the fan would stay on but the compressor would come on for a few seconds and then trip off. It was the motor overload relay on the compressor that was tripping. the RV park was old and apparently the wiring to the panelboard at the RV park was too small, when you are drawing a lot of current there was too much voltage drop across their line, to make up for this the motor tries to draw more current and heats up the motor overload and it trips off. I solved this problem by buying an autoformer from Camping World, it senses a voltage drop and automatically boosts the voltage.

I am now having a seperate problem, the compressor is either locked up or has too much back pressure and trips off the service breaker when trying to start. The only solution I can see with my current problem is to replace the entire unit.

Oct 07, 2008 | Coleman Mach 15 Air Conditioner

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