Question about Dometic Rooftop RV Air Conditioner

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My low speed works but high speed don't work on my air conditoner rv dometic air

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  • Dometic Master
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Relay module, communication cable to relay module from t-stat.

Posted on Aug 17, 2015

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: heat strip installation

It was quite simple, just installing the heat strip and my model only required removing the grill cover and mounting the element. The other optional installations didn't apply to my model.

thanks,
Don

Posted on May 27, 2008

22yooper
  • 828 Answers

SOURCE: PROBLEM WITH DOMETIC RV ROOFTOP AIR conditioner

Check at the compressor terminals between the Red and the terminal for the overload protector to see if you are getting power to the compressor on startup.

Posted on Jul 24, 2008

motor1258
  • 6674 Answers

SOURCE: 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.

Posted on Jun 05, 2010

  • 1 Answer

SOURCE: Air conditioner short cycling

my Carrier package unit is goining off on short cycles. What should I trouble shoot first?

Posted on May 14, 2011

ZJLimited
  • 17970 Answers

SOURCE: need to install a dometic

A schematic of the part number can be found here... Duo Thermostat Wiring.pdf

Additionally, go HERE for the Dometic Service Manual. See pages 39 and 40 as well as 50 and 51. Depending on which unit you have this gives the colors coding for the leads as well as the placement on the thermostat.

Hope this helps; keep us updated.

Posted on Jul 07, 2011

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1 Answer

Why does my Duro-Therm by dometic roof top air conditioner make extra chatter noise on high speed but not on low speed?


clen fan blades at both end of motor. the temperture will be colder at lower fan speed. depending on age and useage the bearings might be going out in motor.

Aug 18, 2014 | Dometic Rooftop RV Air Conditioner

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No heat from heat pump


if outside temperture is to low it will lock out heat pump operation.

Nov 07, 2013 | Dometic Rooftop RV Air Conditioner

1 Answer

Have a duo therm ac and the low ac and low fan not work -


Thermostat on wall, or manual controls at AC? Did it work for you on low before now? Reason I ask, is that normally they are only a 2 speed fan ( low and high) so if it's a wall thermostat and has been changed from original, perhaps it the way the thermostat is wired.

Jul 05, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

Freezes up in less than an hour used 3 times and freezes each time model 59516 serial#93421578 installed 12-4-2009 dometic roof ac


You are either low on refrigerant, dirty coil or filter or your blower is not working or running at the proper speed. Make sure you have the blower on high speed, then, if it freezes up you are probably low on refrigerant. You need to have a HVAC service technician check it out, unless you are fimiliar with or work on air conditioning systems.

Jun 09, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

My rv air wont work on high?


could be the selector switch turn off power switch low and high wire if it blows high replace selector switch if it does not work replace motor. Tom

Jun 13, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Dometic rooftop air conditioner coil freezeup


We did find a solution, the ducts leading to bedroom in RV was blocked. So far, it has been working since we cleared the way, it no longer freezes up. Thank you.

Nov 24, 2008 | Dometic Rooftop RV Air Conditioner

1 Answer

High cool not working


Compressors on these units runs at only one speed. The change to high cool is only a change in blower speed moving air faster over the cooling coil. I would have the running capacitor for the fan motor checked. A bad capacitor can cause your type of problem. The other problem could be that the high speed winding in the fan motor is bad. Try it operation in the fan only position through the two speeds. If it works in the low and high speed for fan only your problem could be in the selector switch.

Jun 23, 2008 | Dometic Rooftop RV Air Conditioner

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