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Old 01-27-2014, 03:51 PM   #1
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Clar7135's Avatar
2005 19' Safari
1 , Washington
Join Date: Sep 2013
Posts: 22
Fridge Question

I have a Dometic 2 way fridge on my 2005 bambi. It can run on both LP and AC. It needs 12volts to run on either one.

The way you can tell it is "on" is by looking at this little red needle that moves from left to right. If it moves to the right and into the green, the fridge is "running."

The fridge works in LP mode.

When I try to turn it on in AC mode, I can't get the needle to move/on. This is my first attempt at using it this way, the previous owner did not mention that the fridge was broken in AC mode.

So, I am hooked up to 120v, I have checked the connection in the back of the fridge, and it works in LP mode. Do I have a 1/2 broken fridge?? Any suggestions would be great. Thanks.

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Old 01-27-2014, 05:21 PM   #2
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1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
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Posts: 4,592
I am not familiar with the "little red needle that moves from left to right" you are referring to, but then a lot of different refrigerators have been put in RV's. However, are you sure that there is no cooling on 120 volts? Have you left it sitting for several hours and found it is not cooling? I am wondering if it is a misunderstanding of how to change it from propane to 120 volts that is the issue. Some refrigerators are totally automatic, but some require some other action to change from one mode to the other.

If it is really not cooling on 120 volts check the following.

First find the 120 volt cord and trace it to where it is plugged in. Then take a test light or whatever you need and confirm that there is 120 volts at that outlet. If not, check the circuit breakers by turning each one fully off then on again. Sometimes you can't see that they have tripped.

If you have power at the 120 volt outlet and the refrigerator is working on propane, the most likely (but not the only possible) thing is that the heating element which provides the heat to run the refrigerator system is burned out and needs replacing. Not hard to do yourself, but if you are not a dedicated DYI person it may need a professional repair.

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Old 01-27-2014, 05:49 PM   #3
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2009 27' FB Flying Cloud
1991 35' Airstream 350
Siloam Springs , Arkansas
Join Date: Oct 2006
Posts: 1,491
The cooling system is the same for LPG or electric.

Either system provides a heat source to pressurize the cooling solution in the pipes on the back of the refer.

If the fridge works on propane, the cooling system is working.

As mentioned above, check the simple things first. The 120 volt "heater" is simply an electric element. Make sure the 120 volt outlet has current. If so, the problem could be the element has failed, or a wiring problem, or a control circuit board problem.

All a pain, but not near as bad as a fridge that won't get cold at all.


Jeff & Cindy
Hunter RIP

'09 27FB Flying Cloud
'91 350 LE MH
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