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I own a Dometic model RM2354. It's gas, DC/AC and is 5 years old. It cools to 40 degrees on gas and AC. But when on DC, running off my truck electric (7 way at the rear bumper) the fridge only cools to 60 degrees. Any ideas for troubleshooting or repair? Drake Ambrosino 734-260-5045, drakeambrosino@comcast.net

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6ya6ya
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Posted on Jan 02, 2017

  • 68 Answers

SOURCE: AC,DC, gas RV fridge Dometic

You more than likely need to replace the control cable between the upper and lower board. It comes as a kit with the upper board. You can also do a bypass test by unplugging your thermoster from the circuit board. The thermoster is the temperature control for the refrigerator nothing to do with the freezer.
rvtech@myway.com
www.coachtech.info
734 777 6432

Posted on Mar 18, 2009

VtToolMan
  • 704 Answers

SOURCE: Just bought a tent trailer with a Dometic Fridge.

You need to make sure that you follow the manufacturer's recommendations for using the unit with each specific power source. It's important that you have the all switches in the proper position, based on what power source you're using.

Here's the manual for your model, save a copy and print it out and take some time to review the section #3 Operating Instructions on page 6.

http://www.alcovr.com/DATA/MANUEL/DometicRefrigeratorModelsRM2191&RM2193.pdf

Hope you find this helpful and will resolve your issue.

Posted on Jul 30, 2009

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Hi and welcome to FixYa, I am Kelly
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It could be as simple as a blown fuse at the fridge. Also check to make sure you have turned on the electric switch that allows the fridge to run on AC. Note, you can only operate the fridge on EITHER gas OR electric, but not both sources at the same time, thus, you have to turn off the gas switch before you can run on electric.

When this unit is running on electricity, it has to have the thermostat set for it to run.

Here's a link to the Dometic manual for your model.

http://www.alcovr.com/DATA/MANUEL/DometicRefrigeratorModelsRM2191&RM2193.pdf

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You more than likely need to replace the control cable between the upper and lower board. It comes as a kit with the upper board. You can also do a bypass test by unplugging your thermoster from the circuit board. The thermoster is the temperature control for the refrigerator nothing to do with the freezer.
rvtech@myway.com
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