Question about Dometic Rooftop RV Air Conditioner

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Duo Therm Model 57915.622 will run for 15min nice an cold then all cuts off

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  • Dometic Master
  • 1,363 Answers

Thermostat or relaymodule.

Posted on Aug 16, 2015

6 Suggested Answers

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Posted on Jan 02, 2017

  • 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

carlsbiz
  • 1124 Answers

SOURCE: i have a duo therm brisk air model 57915-001 leak

Could be the drain path is clogged.. Take the cover off & see if you can get it cleaned..

Posted on Jul 09, 2009

  • 1 Answer

SOURCE: duo therm air conditioner that the compressor will not start

your switch should be oopen but when it reaches 41 degrees it should open so the system shuts off before it damages the compresor by sludging it, i have the same unit and my compresor runs for 5 seconds and shuts off, i checked the amp draw at the compresor and it draws 21 22 amps trying to start after the initial 5 second run, but it wont come on againts a load so the comprresos equilizes and tries to start over again with out positive results. i bipass the external obverload on top of compresor terminals area, still no fix yet, the relay on the control board continious to send power to the compresor and still draws , so if there is a problem with the control relay i would open up and dont send power to the compresor so i dont think is the relay, i am a a/c service man for
35 years and do this for a living still today, by experience i think it is the compresor gone bad but will try by passing the relay just to see what happens, also it could be bad capacitor since it have a hard start relay and start capacitor (black )also a run (silver ) capacitor they check ok, there is no way to check the charge unles you install a saddle tap to check presures and rechage this unit i think the compresor replacement is the way to go ( around 250) plus labor and freon r22 e mail add aljpuig@yahoo.com.

Posted on May 06, 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

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

How do I install a blower motor in a duo therm model 57915.622? What tools will I need?


ITS NOT EASY. YOU NEED A LONG SET OF ALLENS TO LOOSEN BLOWER WHEELS. THIS IS A  DUEL SHAFT MOTOR , BACK COIL NEEDS TO BE PULLED AWAY FROM MOUNT WITHOUT BENDING COPPER. MOTOR BOLTS 3 OF THEM HAVE TO BE REMOVED AND WHEN BOTH BLOWERS ARE REMOVED AND WIRES REMOVED THEN IT CAN BE REMOVED . THE PROBLEM IS THAT THE NEW MOTOR IF IT IS NOT FROM DUO THERM YOU WILL HAVE TO CUT SHAFT TO RIGHT SIZE AND WIRES MAY NOT BE SAME COLOR. IF IT IS SAME MOTOR FROM DUO THERM YOU CAN CUT WIRES AT OLD MOTOR AND WIRE NUT THEM COLOR BY COLOR.

Apr 19, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

I have a 2005 Pilgram 27 foot 5th wheel. My Duo Therm AC unit makes a ticking sound from the ac unit itself when it's not running. Shutting off the Duo Therm analog thermostat does not stop the ticking...


It's obviously on the 12voltDC circuit of the AC unit. Sounds like thermostat, or a relay in control box is faulty or bad connection. If you remove cover on ceiling assy., you should be able to hear it in the control box. There should be a model number on the ceiling assy., get back to me with that number and I can better pinpoint which relay. Also, try moving all thermostat buttons and temperature controls back and forth quickly to see if it may clean off a dirty circuit in thermostat as well. Make sure your AC hydro breaker is off when working with ceiling assy. just to be safe.

Mar 26, 2010 | Dometic Rooftop RV Air Conditioner

2 Answers

Dometic Duo Therm Ac, Fan runs, Compressor cuts in and out?


your compressor is locked up. i would try replacing the round start capacitor. you need to check what the exact rating for yours is but I believe one of these two will work for ya. In the meantime do not continue to try to run it, it will kill the compressor.
seth

53-64 mfd

45-53 mfd

Jul 19, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

I have a duo therm brisk air model 57915-001 leak


Could be the drain path is clogged.. Take the cover off & see if you can get it cleaned..

Jul 09, 2009 | Dometic Rooftop RV Air Conditioner

4 Answers

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?

Jul 06, 2008 | Dometic Rooftop RV Air Conditioner

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