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Old 10-09-2006, 01:30 PM   #1
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Dometic RM3804

HELP!!!!

What am I missing here. My fridge will only get cold in 12V mode! Nothing on 120V or propane. I have never noticed an ammonia spell, and have inspected the coils, and don't see the yellowish powder to indicate a leak.

I have checked wiring, fuses, and such, but can't find a problem...

Any ideas???
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Old 10-09-2006, 01:51 PM   #2
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Are you getting a flame in the propane mode?
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Old 10-09-2006, 02:13 PM   #3
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Yep, nice good flame. I've exhausted all the obvious. i have to be missing something. I'm guessing that if it works in 12V mode, it should work in 120V. ?????????
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Old 10-09-2006, 02:21 PM   #4
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If it works in any mode then the cooling part if the process should be fine. OK, you have a pilot, does the full flame come on?
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Old 10-09-2006, 02:33 PM   #5
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Yep, full flame...
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Old 10-10-2006, 07:10 PM   #6
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Could it have something to do with the Flue? Is there something different between the 12V operation, and 120V/propane that would allow it to work fine on 12V, and nothing on 120V/propane. I find all kinds of tech on 2 way units to diagnose 120v and propane, but nothing for my scenario.
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Old 10-10-2006, 07:26 PM   #7
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yes it could, there is a spiral baffle that hangs halfway down the flue.

when i rebuilt my 3804 the instructions said the flue baffle is very important and the fridge may not work without it.

i find it quite odd that 12 volt is the only way it works, you should get the same performance on 120 volts.... unless the element is burned out.

when you have it on 120 volts does the bottom of the insulation pack around the flue get warm?

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Old 10-10-2006, 07:45 PM   #8
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It might be that your propane burner system and 120V AC is defective.
Propane burners often get clogged, and even though tere is a flame, it is not a hot enough flame to get results.
The 120V elements do burn out easily. Those are easy to replace and check.
You might download a repair manual, or look at tis site:
http://www.gasrefrigeration.net/faultdiagnosis.htm
for more and better information.
Good Luck!
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Old 10-10-2006, 11:34 PM   #9
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I'll check it out. Could be that both problems occured about the same time, making it seem it all happened at once.
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Old 10-11-2006, 06:02 AM   #10
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this may be of some help as well.

http://www.airforums.com/forum...air-23857.html

a couple of shots of the baffle in there.

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