Question about Dometic Rooftop RV Air Conditioner

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I just installed two new roof top Dometic Penguiln 15K ac units Model number 641516.301 and a new 5 button comfort control Center thermostat model number 3109228.001. My thermostat only displays 1 Zone. Any help would be appreciated. Thanks

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  • Dometic Master
  • 6,465 Answers

Make sure 2nd has dip switch 2 on

Posted on Sep 15, 2017

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Posted on Jan 02, 2017

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  • 86 Answers

SOURCE: RV Dometic AC Comfort Control Double EE Problem

1 make sure sensar place of thermostate

Posted on Mar 28, 2008

  • 230 Answers

SOURCE: will not shut off

Sounds like a stuck relay on the unit itself. Maybe there is a short in the control wire that comes from the thermostat that activates the fan.

The thermostat probably has one hot wire at all times. The thermostat then chooses which wire to send the voltage down based on your selection. One of those wires is probably for the fan only. Make sure that it is in good condition (no bare, pinched or wires)

Posted on Jun 17, 2008

  • 1 Answer

SOURCE: thermostat wiring for second ac unit

I replaced one unite with another and the wires are differance colors the old unites wires are red,purple,yellow,bleck and white the new one have orange,brown,cream,darkpurple,and white

Posted on Aug 02, 2008

  • 1 Answer

SOURCE: RV Dometic AC Comfort Control Double EE Problem

I have a dometic duo-therm. The unit works great and fan blows strong and both high and low work., but air is coming out of the ceiling unit rather than the duct work. The bedroom unit works OK, but the air is strong out of one duct, and not much comes out of the others. The front unit only has air coming out on the A/C unit and none out of the ducts.

Posted on Mar 18, 2009

  • 116 Answers

SOURCE: I''ve been working on this thing for three weeks

check the compressor winding resistance from common to start
start to run
run to common
the two lowest should equil the highest
also check shorted to ground
check the capacitors the go bad a lot

Posted on May 17, 2009

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1 Answer

I have a Dometic 15K roof Ac on my FW. After the AC reaches therm temp, the compressor and the fan turn off, but the fan starts right back up again and runs until you set the thermostat on off.


That is normal operation, only the compressor cycles, the fan stays running to keep air circulating for better temp control. Otherwise the rear of the space could get 5 degrees warmer than the front

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Depending on what model AC unit and control box is in the upper unit. Call or e-mail dometic and get recommendations first. ( dometicusa.com ) You'll be glad you did. Been there, done that.

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Please reply with Model number of bottom of AC unit ( upper) . Can be seen from inside usually. Thermostat model, plus if controls are at the ceiling assy or at thermostat on wall.

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Replacing the remote control for rv ac/furnace with standard thermostat


You are aware that the ceiling assy (control box) will most likely need to be replaced as well, to work in conjunction with new thermostat. If you contact dometic ( www.dometicusa) and give them your model number off bottom of roof unit and what thermostat you are trying to install, they will advise what is required.

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I have a new Salem travel trailer with Dometic products. Everything appears to work fine, but when I run my furnace and it turns on, my fan blows from my AC unit. I have owned 2 other RV's but...


Yes it sure does sound like something may be wired wrong, Could you please reply with model number of your AC unit as well as thermostat model? To find your AC unit model number if you don't already have it, remove your ceiling air filter assembly, and it should be on the base of the roof unit, facing you.
The base of the roof (upper) unit will have a model and serial number, and if you see a control box where all the wiring attaches as well, get model number from that too if you will. Those numbers should make it easier to determine exactly where the problem is. Thanks.

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My Dometic Rv ac is not cooling but, the fan does run..


Can you give me the model number of your AC unit. There should be a sticker on the bottom of the upper (roof) unit, that you can see when you take the filter down from the ceiling inside. Also need to know if it's a wall thermostat and what brand/model, or are the controls at the ceiling.

Apr 24, 2010 | Dometic Rooftop RV Air Conditioner

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Both roof top units on RV cool for awhile the go off


May be low voltage problem or bad connection this may cause controller to shut one or both down. Need to talk to RV dealer for assistance on this system.

Jun 28, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

I have a dometic dou therm roof mount a/c model number 59136.331 with a comfort control center 3109228.001. I get an error code ee and have no information as to what this code is this is the only thing...


The thermostat needs to be reset. Turn it off and hold the top and bottom buttons in at the same time and turn the thermostat on. In a few seconds will read FF and you should be good to go.

Jan 11, 2009 | Heating & Cooling

2 Answers

RV Dometic AC Comfort Control Double EE Problem


I have a dometic duo-therm. The unit works great and fan blows strong and both high and low work., but air is coming out of the ceiling unit rather than the duct work. The bedroom unit works OK, but the air is strong out of one duct, and not much comes out of the others. The front unit only has air coming out on the A/C unit and none out of the ducts.

Mar 24, 2008 | Dometic Rooftop RV Air Conditioner

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