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Dometic Duo therm RV a/c rooftop unit. 15,000 btu with heat pump. model 620515. age 5 years. Problem- will not always stay ON. Starts and cools fine. but shuts off within 5 mminutes sometimes.. or will run for hours and hours with no problems. when it stops, I can sometimes restart it by cycling thermostat.. if that does not work I can unplug thermostat from 12v power and then it starts when asked to. Have replaced computer circuit board and wall thermostat.. no change.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 68 Answers

SOURCE: btu for dometic 59516.531

59516 is a Brisk Air 15000 BTU.
Thanks for using Fixya
Jerry

Posted on Mar 30, 2009

  • 534 Answers

SOURCE: my dometic duo therm brisk air RV a/c unit is not cooling the RV

clicking sound could be thermal overload on the compressor. If the compressor has gone out the unit will not cool the clicking sound is possibly the compressor trying to reset but if the compressor has "gone to ground" (winding burnt out) you will need to have the compressor replaced. Good luck on your repairs hope this helped some

Dave

Posted on Oct 27, 2009

motor1258
  • 6674 Answers

SOURCE: Front AC unit will not turn on

The clicking tells me the AC(hydro) power has been turned off to it. Check all breakers, and make sure if you have another switch on wall, to change from front, to back, or to both, that it is in proper position.

Posted on Apr 18, 2010

  • 415 Answers

SOURCE: looking for wiring diagram for a duo therm by

There are several models out there. Here are a couple of manuals with wiring diagrams that I believe will help you regardless of the model number. However, if they are unable to help you, let me know the exact model number and we'll search for the wiring diagram. :-)

Link #1

Link #2

Posted on May 19, 2010

motor1258
  • 6674 Answers

SOURCE: My Duo-therm Brisk-Air by Dometic rv ac wont cool.(The fan runs )

Usually just listening closely will give you a rough idea where to look for problem. When you have the fan on and switch to cool, (with temperature turned down low obviously) do you hear any type of "moaning" sounds from AC unit, or see lights in RV dim slightly indicating that compressor is trying to engage? Is the breaker tripping when compressor tries to engage? Do you hear a "click" from AC unit when switched to cool? If none of that happens, then I'd start thinking thermostat, or compressor relay. Normally if it's a faulty capacitor, the compressor will try to engage but will make a "moaning sound" and usually trip the breaker due to excess current draw. Someone experience in electrical should be able to test relays etc, but whoever does work on it, should be aware that those capacitors, as well as hydro in general are very dangerous to work with. The ("zap",- Shock) that you can experience from a capacitor or hydro, can be fatal.

Posted on May 30, 2010

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1 Answer

Is it common for a rv rooftop air conditioner to leak water on to the roof? I have a Dometic Duo-Therm unit 579,590,595 series.


All AC units create condensation from the cooling of air (cold/cool air hold less water than warm air), it is worse in areas of humid air like the Midwest for example.

May 12, 2017 | Dometic Heating & Cooling

1 Answer

What size ac 59516 331


15,000 BTU. Here's a link for you. http://www.dometic.com/FileOrganizer/1-international/Operation%20&%20Installation%20Manuals/Air%20Conditioners%20-%20Vehicles/Duo-Therm-HP_installation_EN.pdf

Jul 13, 2014 | Dometic Rooftop RV Air Conditioner

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Duo therm runs cools clicking


Sounds like a reversing valve solenoid.

Feb 23, 2012 | Dometic Rooftop RV Air Conditioner

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Is this model number a 13,000 or 15,000? and whats the difference


Hi, I don't see a model number? I can tell you that for each ton of cooling, you will have 12,000 btu's. So, at 13,000 and 15,000 btu's of cooling, they both are just a little over 1 ton of cooling. Tons are a measurement of btus in a/c and heating applications. Give me the exact model number itself, and I can tell you the tonnage.
Thanks,
Shastalaker7

Jun 05, 2010 | Dometic Rooftop RV Air Conditioner

2 Answers

My dometic duo therm brisk air RV a/c unit is not cooling the RV


I had the sam problem, took the thermostat cover off and tightend and refastend the wires, so far so god

Oct 27, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

No 12 volt power to duo therm comfort control box


check if you have 240V and then 12V to the secondary of the transformer if none then its your transformer that is faulty

Aug 02, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

A/C starts, goes immediately to heat


Unfortunately, your rear unit is calling for heat. If you put the rear unit on heat pump mode, does it then cool?
moz-screenshot-2.jpgmoz-screenshot-3.jpgThe reversing valve is energized in the cool mode of these AC's. So there is no real way to bypass it. I would check the thermostat and the control board in the unit to make sure that the switches are set correctly.

In the service manual section of the dometic/Rooftop RV Air Conditioner section. I have posted service manuals for the Heat Pump and the Comfort Control.

Hope this helps,

Jeff

Rate me please.
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Jul 06, 2009 | Dometic Rooftop RV Air Conditioner

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