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07-11-2016, 08:51 AM
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#1
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Junior Member
Join Date: May 2014
Posts: 5
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Dometic Refrigerator
I have a Dometic Autodefrost refrigerator in my 2007 Monaco Dynasty. When the outside temperature is over 80 degrees the fridge temp will climb into the mid 50's - 60 degrees which of course is unacceptable. The freezer climbs up about 10 degrees. Has anyone experienced the same issues and if so what was the remedy to fix it?
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07-11-2016, 08:58 AM
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#2
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Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Oct 2010
Location: Lake Havasu City, AZ
Posts: 1,717
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I'm guessing this is the NDA 1402? Are you seeing this on gas or electric or both? Is the sun facing the outside of the fridge compartment?
__________________
2019 Newmar Dutch Star 4328 K2
2017 Grand Cherokee Summit 5.7
2008 Beaver Contessa 40' Pacifica 425 Cat
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07-11-2016, 09:14 AM
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#3
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Senior Member
Ford Super Duty Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 5,932
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I would try the dollar bill in the seal test first. That is the quickest and cheapest fix. If the seals are good, I would next go to the high humidity switch. Make sure it is off. Last I would go with the cooling fans in behind the refrigerator.
__________________
1998 Pace Arrow 35 ft. F53 Ford V10 2014 Honda CRV toad
32 years mechanic at Delta Air Lines 15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
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07-11-2016, 03:44 PM
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#4
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Senior Member
Join Date: Aug 2012
Location: fulltiming
Posts: 295
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I have an absorption type fridge and have replaced the cooling unit after 6 years. We are full timers. We too noticed the temperature increase when the sun was on the refrigerator side of the coach and finally last fall it failed completely. The cooling coils were very hot on the lower part of the cooling system and the ice maker shut down because the ice box was not cold enough.
Fix was not cheap and should not be attempted by a do-it-yourselfer.
__________________
Bob & Joan Alexander, 2010 Tiffin Phaeton 36 QSH, 2013 Jeep Wrangler (toad)
Lobo & Juniper (woof, woof)
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07-11-2016, 09:36 PM
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#5
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Senior Member
Join Date: Sep 2013
Posts: 552
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If tech's can't fix the problem, just replace the unit with a 12c compressor fridge from Vitrifrigo or Nova Kool, which is what I did 😜👍🏻
1996 Country Coach Intrigue 😜
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07-11-2016, 09:55 PM
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#6
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,486
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RV fridges will virtually shut down when temps, at the cooling coils on the back of the fridge, get near 100.
Many posts on adding vent vans to increase air flow up the back of the unit, and replacing the thermostat/sensor with an adjustable unit. I'll see if I can post a link, or two.
EDIT: Here's some info.
www.snip-the-tip.com/cgi-bin/articca.cgi
http://www.irv2.com/forums/f54/addin...dge-86697.html
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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07-12-2016, 01:36 AM
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#7
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Senior Member
Join Date: Jun 2011
Location: FL
Posts: 11,452
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If the refer is in a slide it has side vents and probably two fans toward the top. If one or both go bad it will not cool properly. You also need to make sure the drain tubes are not cracked and letting warm air in.
I added two more fans to my refer since we live in scorching weather. I get 0 to -1 in the freezer and 33 in the refer with the refer facing the sun. Outside temps are 90 right now.
If your refer is in a slide you should be able to hear the fans. There is also a small snap thermistor (temperature sensitive switch) that controls the fan. They are 12 volt so safe to mess with but don't stick your finger into a moving one.
__________________
Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008
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