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Old 07-25-2005, 05:05 PM   #1
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Dometic cuts out

I have a 11 year old Dometic. Last night I found out that the freezer and the main section have defrosted. All the ice in the freezer melted. I turned it off and back on. Today the freezer is normally cold but the main section is at 70F and has been for the whole day.

Why did it defrost, is that a normal cycle or is it going bad? How long until the main section gets cold again?
I haven't moved the camper or anything.

What is going on and what can I do about it?

Justice - When you get what you deserve. Mercy - When you don't get what you deserve
Grace - When you get what you don't deserve
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Old 07-25-2005, 06:28 PM   #2
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1994 36' Classic 36
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Gas or electric

Which are you running it on?
If gas, battery may be low or ignitor is not working properly,

If twelve volt, maybe battery is low.

If electric, maybe lost power and the auto roll over moved to gas / battery see answer one and two

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Old 07-25-2005, 06:34 PM   #3
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It has been really hot today, above 100F and I've had it set it #3 setting, not max cool. I upped it to the coolest setting, let' see if that works. I realize that sometimes ti takes Dometic 24 hours to start cooling.
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Grace - When you get what you don't deserve
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Old 07-25-2005, 07:17 PM   #4
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1994 30' Excella
Mississauga , Ontario
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I have a 94 dometic rm3807 two way fridge freezer(two door) and it did the same thing. Found an article on the internet that said the control boards are no good. They are epoxy filled and overheat. Circuit opens and no cooling. Once it cools down it works again.
If you pull the board and it is yellow inside, that's the one. I replaced it with a new board and it works great. Replacement was a "dinosaur" (brand name)
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Old 07-25-2005, 08:30 PM   #5
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Make sure that the unit is level. Also Clean the flue. I clean mine 2wice a year. Good luck Jim
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Old 07-26-2005, 12:39 AM   #6
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Sunnyvale , California
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If it runs and then stops: Control Board

Just to add, ours (1988, Dometic R2605 series..) would run for 6 to 18 hours (gas or electricity) and then cut out and stop.. Did trouble shooting (no broken lines, no ammonia smell, no leaking fluid, and good wiring to back of fridge..) and answer was defective Dometic Control Boards..

Bought Dinosaur Board (components not buried in epoxy and don't overheat..) and replaced, and have no refrigerator issues since (1 1/2 years..). You can do Google search on Dometic and Dinosaur and control boards to find dealers (mail order works OK) and ID model number for your unit, if that is problem..

John McG

In Theory, there's no difference between Theory and Practice, but in Practice, there is usually a difference...
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Old 08-04-2005, 05:59 PM   #7
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Air Flow

There is something very wrong with the design of the vent chamber; I think it is too large to create the proper draft. All you have to do is add an exhaust fan. I bought a 12 volt fan at Wal-Mart for Eight dollars and faced it out thought the lower lover door. You may also want to think of adding a baffle from the outside wall to the coil, so that air is forced to flow though the coils.
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Old 08-04-2005, 08:11 PM   #8
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Clean the Flue

How does on go about cleaningthe flue?

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