Question about Dometic NDR 1292 Refrigerator

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Dometic RM2652 cooling cois cold to touch.

Both AC and propane seem to operate ok. Appears to have no cooling at all. Can I assume the problem is a block in the cooling coil?

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If the controls are working correctly, it is defiantly a problem with your cooling unit, either blockage or else leak. The best way to find out if it is the cooling unit is the problem is to disconnect the the heating element from the circuit board and add a 110 plugin so you can plug the heating element directly into a wall outlet. Make sure it gets hot (the heating element) and let it run for at least 6 hours. The frige dosen't need to be on during this time because all controls are being bypassed if the fride dosn't make cool it is a bad cooling unit. If it cools you probably have either a short, or the main circuit board is bad. (in 1993-1996 Dometic used a yellow epoxyed circuit board that almost allways went out at about 2-5 years of use)

Posted on Feb 20, 2009

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1 Answer

My freezer seems to work fine on the AC but the fridge will not get cool any idea what the problem might be Dometic model RM2652


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http://www.gasrefrigeration.net/dom_techdata/26121_2852SM.PDF

Since you didn't state what mode (propane or AC) you are experiencing the problem in maybe this manual will be of most help.

Since it is not the standard frigerator, and uses ammonia for cooling and not freon, be careful working around the coils.

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Sounds like maybe your element for Heating when on hydro may be faulty. A voltage check at spades on board connected to element will confirm. If power to element but no heat felt at element should confirm it's faulty. Remember, if stack is already hot from propane, element will also feel hot, so it has to be out or fridge cooled down at back first.(off)

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There is some reason maybe not explained here. But I will help you if you want. Below is a simple test. The manual I need you to make sure if you have the RM2652 or another model to get the correct manual. That model has digital controls and that is controlled by a control board for switching from AC to DC to Propane. If the board will not switch then we need to look for that problem. Dometic, good refrigerate and great support group. Now here is a link to that model number problem solving PDF. With the manual we can work together to solve this. Thanks, Sea Breeze http://www.dometic.com/FileOrganizer/1-international/Operation%20&%20Installation%20Manuals/Refrigerators%20-%20Caravan%20-%20Motohomes-%20RV/English%20and%20Multilingual/RM2652-RM2852.pdf

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Dometic RM2652 will not cool on A/C or propane, I've checked fuses, and AC to refer. I opened the access panel on outside of Travel Trailer, and there is yellow powder on bottom, and some on heating tube....


Ammonia is just what you a re smelling as the coolant is ammonia based Your cooling unit has leaked and is done for- Sorry I had to be the one to tell you

2 choices Replace the refer or Replace the coiling unit, I would suggest replacing the refer and having a new warranty

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