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Dometic duo therm

The air conditioner was working then it just stopped and the fan will only work now

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  • 84 Answers

Just leave it to the technicians for your safety,definitely it has a faulty part trailed out to motor comp.

Posted on Apr 23, 2014

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6 Suggested Answers

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Posted on Jan 02, 2017

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22yooper
  • 828 Answers

SOURCE: duo-therm by dometic ac rv unit

I suspect that you have a bad selector switch for the on, off, low fan, high fan operation. If the selector switch is put into the off position everything should stop completely.

Posted on May 31, 2008

  • 1 Answer

SOURCE: duo therm air conditioner

my duo therm air works beautifuly all day but at night when we go to bed it seams to turn on and shut off rapidly. what could be wrong?

Posted on Jul 19, 2008

  • 69 Answers

SOURCE: Dometic Duo-Therm air conditioner: keeps tripping

First clean the condensor with air blower or water pump and clean the filters.If the same problem persists there is a choke up in the refrigeration piping, cut from the discharge side and suction side flush the system with nitrogen, replace the filter drier and choked capillary if it is a capillary system, brace back the discharge and suction piping to the compressor again, leak test with nitrogen, evacuate the system charge refrigerant and start the system.

Posted on Aug 15, 2009

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

heatman101
  • 43501 Answers

SOURCE: Dometic Duo-Therm Model 57915.622 Fan will not start.

Hi, Sounds like your fan motor has gone bad...
Here is a tip about trouble shooting your air conditioner...

Air Conditioner Trouble -Review the Possibilities
http://www.fixya.com/support/r3571569-air_conditioner_trouble_review_the_possi

heatman101

Posted on Jul 19, 2010

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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

Shut off automatically, and I run it in fan only mode


Remove filter cover and see if front coils /fins are frosting up. Let me know

May 17, 2010 | Dometic Rooftop RV Air Conditioner

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Compressor won't kick off


What happens when started in just fan mode? Sounds like relay stuck.

Jul 28, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Duo-therm by dometic ac rv unit


I suspect that you have a bad selector switch for the on, off, low fan, high fan operation. If the selector switch is put into the off position everything should stop completely.

Apr 30, 2008 | Dometic Rooftop RV Air Conditioner

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