Question about Dometic Rooftop RV Air Conditioner

1 Answer

My RV A/C just shut off and won't come back on. I've checked the breaker, the power supply line and connections. Nada. It doesn't even hum.... nothing. ??

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Dometic Master
  • 6,674 Answers

If no clicking at ceiling assy, when turned to different modes, check for blown fuse in thermostat.

Posted on May 08, 2010

  • Mike Butler
    Mike Butler May 08, 2010

    If in a towable RV, check all fuses in main fuse panel as well, and let me know what the results are please.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Unit was working fine then power went out in campsite came back on now unit just hums so does just fan only checked breaker that's fine


If the unit just hums, it sounds like you have low voltage to the unit. If the unit is 230v, make sure both legs of the breaker are pulling in.

Nov 01, 2013 | Dometic Rooftop RV Air Conditioner

1 Answer

Don't have power to 120v recpt. on dometic rm 2862 ref


Go to your breaker box inside the RV. Locate the breaker that is for the refrigerator. It may have tripped but still looks as if it is on. Turn it off then back on. It should click and stay firm in the on position. Now check your outlet for power. Either use an outlet tester or a portable radio. If you have power but the refrigerator is still not working you will also need to check the 12vdc power supply. The refrigerator must have 12volts to operate even when in AC mode. There is a wire from the 12vdc connection block that goes to a thermal switch on the heat riser tube to the right. That wire has an inline diode and if the diode has failed it will not allow the refrigerator to work and like wise if the thermal switch has tripped it will shut the unit down. The switch is resettable. The diode wire, if bad, will have to be replaced. If you do not have 110vac power at the outlet after resetting the breaker you will need to remove the outlet and inspect it for bad connection or broken wire and then trace the wire back to the breaker box until you find the point of failure. You will also want to check the ground bar in the breaker box and make sure the neutral wires are properly seated and tight.

Sep 18, 2013 | Dometic Refrigerators

1 Answer

Dometic roof top AC unit compressor turns on even if T-stat is off. Only way to get the compressor from turning on is to turn the breaker off. Unhooked T-stat wires to see if issue was there but the...


Sounds like you may have a couple of problems there. First, have you checked incoming voltage to make sure you are getting 100-120 VAC at the AC control board in ceiling? If that's ok, try removing/disconnecting Ac compressor wire at ceiling control box and see if compressor shuts off then. May be a capacitor for compressor going or shot, and possibly relay in control box sticking, or bad wiring to thermostat. Have you had any lightning in the area prior to all this happening?

Jan 23, 2013 | Dometic Rooftop RV Air Conditioner

1 Answer

PC won't stay on, doesn't make it past the boot up menu


the fan on the CPU working? Try a different power supply the one you have might be faulty

Nov 18, 2012 | HP Computers & Internet

1 Answer

Kenmore dryer 70 series 66722690 - has power but won't start (no humming noise, no ticking noise from timer, and no light when you open door) nothing!


I would check the breaker before you go any further. Here are some things to remember when you do this. 1) The breaker for the dryer is generally located outside on the side of the house somewhere near the electric meter. Most 220vac breakers are, which include any electric range, cooktop, wall oven, etc. 2) When your checking the breaker, actually physically touch it. Sometimes breakers can trip a but the spring that actually pulls the breaker to off position is weak and by visual inspection would appear on. Just simply reach in and tap the bar lightly in the off direction. If it pops over to the off position, turn it back on then go check your dryer. If the breaker passes inspection, I would unplug the machine because there migfht be a short at the terminal block where the plug connects to the dryer. After you've unplugged it, remove the back and check to see if everything is ok. I have a strong feeling that you won't need to get to this point cause I'm betting on breaker.

Apr 30, 2012 | Kenmore Dryers

2 Answers

Duo therm mod. 57915 air conditioner seems to work good , runs for 4-5 minutes then kicks breaker , was kicking 30 amp breaker at camp ground , i've been working on connections to make sure its...


Unit may pull as much as 17-18amps when compressor starts up, but level out to 12-15 amps when up and running. Keeping in mind that is all relative to proper 120v incoming voltage, heavy enough wire to run the application etc. If your AC unit needs cleaning , it may draw an extra amp or 2 . With that said, when your at the park, first thing I'd question is their incoming voltage to RV, and try running fridge etc and anything else on propane if possible. The AC alone should not cause 30amp at source breaker to trip, before 15 0r 20 amp breaker in RV that is connected to AC trips. If it doesn't trip your breaker at home, and all is connected same at park, then I certainly would suspect bad breaker or voltage/wiring at park is the cause. P.S. I noticed you said you have 12 gauge wire (rated at 20 amps) connected to a 20amp breaker at panel, but RV is plugged in to a 15amp receptacle, I will assume with a 15 amp adapter from 30 amp plug. Do you see any hazard regarding 15 amp rating on receptacle? ( just a little advice.)

Aug 15, 2011 | Dometic Rooftop RV Air Conditioner

1 Answer

My fridgedaire window unit A/C and heat won't come on. I had replaced an outside light fixture a couple of weeks ago and had turned off the circuit breaker that affected this unit too. Now the unit...


Plug a light into the outlet used for the A/C, if the light does not come on when reset then the circuit breaker that provided the power to the outlet need to be reset or replaced.

May 22, 2011 | Frigidaire FAS257S2A WallWindow Air...

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

Correction to my original problem


Sounds to me like your contactor switch is not fully disengaging when unit shuts off. The reason I think this is even though the unit itself shuts off there is still power going to the contactor but, once you shut power off to contactor by shutting off breaker you release contactor since there isnt any power left to cause switch to continue to be energized.

Jul 15, 2009 | Dometic Rooftop RV Air Conditioner

Not finding what you are looking for?
Dometic Rooftop RV Air Conditioner Logo

Related Topics:

202 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dometic Heating & Cooling Experts

Bill Long

Level 3 Expert

587 Answers

Donni Steen

Level 3 Expert

659 Answers

mike cooper

Level 3 Expert

884 Answers

Are you a Dometic Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...