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Old 07-03-2012, 11:11 AM   #1
2 Rivet Member
1979 24' Airstream Excella 24
Lake Tapps , Washington
Join Date: Jan 2010
Posts: 27
1979 Dometic RM100 dead

The cooling unit seems to be dead and nobody will repair or offer a replacement unit due to it's age. Replacements are not quite the right size (shorter or taller) and people complain about the 12V circuit boards going out periodically.

I have looked for a Dometic RM2820 or a Norcold N641 which are close to the right size and finding a used one for a cheapskate like me would be nice, but I may have to pay $1,300 for a new one and be done with it. One dealer was adamant that Norcold was the way to go due to parts/service availability and American made by American company nationalism.

Anyone have a solution or ideas for me?

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Old 07-03-2012, 11:56 AM   #2
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1978 31' Excella 500
Venice , California
Join Date: May 2006
Posts: 1,061
If the heating system works, try removing the unit and inverting it for 24hrs. That wil sometimes get it going again.

"Not all who are laundering are washed" say Bill & Heidi

'78 Excella 500,"The Silver Pullit". vacuum over hydraulic disc brakes, center bath, rear twin. '67 Travelall 1200 B 4X4 WBCCI 3737
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Old 07-03-2012, 11:57 AM   #3
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2010 30' Classic
Vintage Kin Owner
South of the river , Minnesota
Join Date: Dec 2009
Posts: 4,020

There are a few places around the U.S. that repair cooling units. Use search and check the archives for details. It's a hassle because you may have to travel, in general, the places that do this kind of work don't like to ship fridges back and forth. You won't save any money but you can get something that fits the space.

Dometic and Norcold each make good products and have good parts and service availability. In recent years, Norcold has had more recalls than Dometic.

I would avoid used fridges since it is impossible to know the history of the unit, given the huge hassle a fridge failure on the road makes.
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Old 07-05-2012, 01:30 PM   #4
2 Rivet Member
1979 24' Airstream Excella 24
Lake Tapps , Washington
Join Date: Jan 2010
Posts: 27
Thank you

I have heard of 'burping' the refrigerant like you talk about, but in this case it did not work.

Those who do not have to write the check all suggest going new!
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Old 07-05-2012, 02:11 PM   #5
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1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
Join Date: Jul 2009
Posts: 4,592
There is a RM 100 for sale in the classifieds right now for $100
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Old 07-06-2012, 11:01 AM   #6
2 Rivet Member
1979 24' Airstream Excella 24
Lake Tapps , Washington
Join Date: Jan 2010
Posts: 27
RM100 in New York

Yep, but it is as old as mine and across the whole country from me. Shipping costs would be high and jostling could damage it's aging parts. I would rather not risk the hassle of installation and later removal if the best solution is a newer unit. Thanks for checking!

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