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Fridge does not cool on either gas or electric. There is power and gas available and the lights work in the fridge and the motorhome is level. This has just started It tried to keep things cold, however it just kept thawing whatever was in the freezer

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Either the thermometer is bad, the thermostat is bad, or your coils need dusting. Is your compressor running?

Also clean the condenser assembly. Also check the evaporator tray to see if it is wet. It should be.

You also can remove the rear cover inside the freezer. Now, after the compressor has been running for about 25 minutes...You may have to leave the doors open to accomplish this, wet your finger and touch the silver evaporator coils from top to bottom and front to back. Does your finger tip lightly stick to these coils all over? It should be.

Next thing is to check the air diffuser assembly.....This one should have you nearing the end of this diagnosis. Good Job so far. Basically you have a electronic damper control which they are calling an air diffuser. It is located between the walls of the freezer and the refrigerator at the top rear. It is a vent that has a little motor controlled by the main control board according to the readings the thermistor relays to the electronic control. What happens is the little plastic door hinge breaks and the motor turns but the door does not open or close as programmed anymore. You may have to gain access from both the freezer and refrigerator side to remove this to inspect it for a break. If I remember correctly, there are little tabs on the freezer side that must be depressed to remove it into the refrigerator side. If this is broken, open the door manually about 1/2 of the way and reinstall.

Posted on Jun 23, 2009

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Also keep in mind that these units are very sensitive to being leveled; even a minor tilt will cause them to quit cooling. These units are not equipped with compressors as are home refrigerators which are not quite as fussy as the evaporative type.

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Don't forget to rate this post. Good Luck!!

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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

Just follow the steps for running on electric and you should be OK.
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Hope this helps,

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