Sunline RV Forum
Sunline User Photos

Go Back   Sunline Coach Owner's Club > Technical Forums > Repairs and Maintenance
Click Here to Login

Join Sunline Club Forums Today


Reply
 
Thread Tools Search this Thread Display Modes
Old 01-17-2014, 09:20 PM   #1
Member
 
Join Date: Nov 2013
Location: Rhode Island
Posts: 38
SUN #5893
jpares89 is an unknown quantity at this point
Dometic RM660 not cooling. Fix or replace?

I have an 83 21' fiver that I'm fixing to sell. It has the original Dometic RM660 3 way refrigerator in it. I think the fridge is junk. The 110v heating element trips the breaker once it gets hot, I haven't even tried to light the gas element. The 12v element gets real hot but the fridge does not seem to get cool at all. I would imagine all the ammonia leaked out.. Should I fix it or just throw a $50 mini fridge in it off craigslist? I'm thinking I just mini fridge it. A reman cooling unit is $350.. Thoughts?
__________________

__________________
jpares89 is offline   Reply With Quote
Old 01-18-2014, 01:13 PM   #2
Moderator
 
JohnB's Avatar
 
Join Date: Nov 2006
Location: Ohio
Posts: 9,175
SUN #89
JohnB is an unknown quantity at this point
The electrical issue is not that hard to overcome. However the cooling coil is more involved. The 12 Volt element is more for "maintaining" than cooling the unit down. A feature that works well while driving.

The real question is the coil alright? Being it is unused for so long any traces of yellow residue of leaked out coolant may be long gone. Sitting so long it might be partial clogged inside. Or it rusted through and leaked out.

I myself have never worked through bringing a clogged one back to life. I have heard if you turn the fridge upside down it some times breaks free the clogs. Have to research how long you leave it turned over or how many times or do you shake it. The method may not be a factory certified method... however some have reported it working while others nothing. It is get lucky or not.

We had the 12 volt option on our PU. I always cooled the unit down on gas or 120vac and even then it takes a good 8 hours do feel it doing cool inside. Then flipped it over to 12 volt if needed while traveling which was not often. We used ice blocks to travel with.

The 120 vac unit tripping the breaker, odds are high it is shorting out when it gets hot. It expands creating a dead short. Assuming it is tripping a 15 amp breaker, the normal draw is no where near that much. Before you gas fire it, you need to really check and make sure the burner is all clean and not full of mud dauber nest.

Since your at, is it worth fixing or junk, if you want the use of boondocking with no power and run it on gas, then that benefit says try and see if the coil is good. If you are looking for spending close to nothing in $$ to find out, well clean up the gas system. It might fire right off. I did this on my son PU, was plugged shut with mud dauber but after cleaning it all up it fire right off.

If you get it to fire, do not leave the unit alone until you know it is safe. If the coolant is intact and flowable you should feel the pipes above the unit warming up after 20 to 30 minutes I would think. I can tell mine is working in a lot less time. If nothing is happening, pipes above unit are not getting warm with heat moving up the coil then take note it is not getting super red hot at the boiler area. I do not know the time period, maybe 60 to 90 plus minutes with a coil breach the boiler area gets dangerously hot. In worst cases wood around it can catch fire. This is the recall issues just I never heard how long it takes to get to critical mass and how close combustibles where.

And then there is, if nothings happening, try the rotate and flip and shake to see if you can break free the clog.

You are eating up time trying to sort it out, but if you get lucky you have a working fridge then buy a new 120 element. If you will never boondock off the grid, then a dorm fridge can be a solution. For us, we need the fridge to work on LP.

Good luck and let us know how this goes.

John
__________________

__________________
Current Sunlines: 2004 T310SR - Fern Blue, 2004 T1950 - Fern Blue, 2004 T2475 - Nutmeg
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC

Google Custom Search For Sunline Owners Club
JohnB is offline   Reply With Quote
Old 01-19-2014, 07:27 AM   #3
Member
 
Join Date: Nov 2013
Location: Rhode Island
Posts: 38
SUN #5893
jpares89 is an unknown quantity at this point
Thank you so much for all the information. I think ill just pull out the fridge and run it out side the camper to see if i can get it to work off gas. My other camper i use (32' newmar kountry star) sat for 5 years and has a electronic gas fired fridge as well as the 120v ac worked just fine no problems after all these years. The guy who gave me the sunline said it did work. so maybe the 12v element is not getting it to go. The coil is rusted but solid. Ill take it out and run it out side on lp.I will keep you all posted!
__________________
1990 Newmar Kountry Star 32' 5th wheel
1983 SunLine FR2100 21' Goose neck
2003 6.0 Ford F350 6.0 Diesel 6spd Manual Leather 4 door
1988 Chevy Camaro IROC-Z 5 spd maunal 5.0 v8
2004 Mitsubishi Endevor 200k and still going. (Wifey mobile)
jpares89 is offline   Reply With Quote
Old 01-19-2014, 11:15 AM   #4
Moderator
 
JohnB's Avatar
 
Join Date: Nov 2006
Location: Ohio
Posts: 9,175
SUN #89
JohnB is an unknown quantity at this point
Your welcome. Looking forward to the outcome. It is amazing some of these oldies can get back working again with some time, a little know how and well, luck..
__________________
Current Sunlines: 2004 T310SR - Fern Blue, 2004 T1950 - Fern Blue, 2004 T2475 - Nutmeg
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC

Google Custom Search For Sunline Owners Club
JohnB is offline   Reply With Quote
Old 01-21-2014, 12:48 AM   #5
Moderator
 
Sunline Fan's Avatar
 
Join Date: Dec 2006
Location: Michigan
Posts: 5,704
SUN #123
Sunline Fan is an unknown quantity at this point
I've yet to hear a success story of one being brought back to life, but it would be great to hear one! I believe the instructions were to leave it flipped over for about 24 hours, but maybe more time couldn't hurt? I have a printout of the instructions somewhere.

If you do scrap the refrigerator for a mini fridge, I'd slide the wood panel with pull handle out of the door face and tuck it inside the cabinet there, should someone want to put an RV unit back in there.
__________________
2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9461.2 (as of 10/01/16)
1997 T-2653 Blue Denim, #5471
1979 12 1/2' MC, Beige & Avocado, #4639
Past Sunlines: '97 T-2653 #5089, '94 T-2251, '86 T-1550, '94 T-2363, '98 T-270SR
Sunline Fan is offline   Reply With Quote
Old 01-28-2014, 09:13 PM   #6
Member
 
Join Date: Nov 2013
Location: Rhode Island
Posts: 38
SUN #5893
jpares89 is an unknown quantity at this point
When I pull it out ill be happy to tell my story weather it's dead or alive.
__________________
1990 Newmar Kountry Star 32' 5th wheel
1983 SunLine FR2100 21' Goose neck
2003 6.0 Ford F350 6.0 Diesel 6spd Manual Leather 4 door
1988 Chevy Camaro IROC-Z 5 spd maunal 5.0 v8
2004 Mitsubishi Endevor 200k and still going. (Wifey mobile)
jpares89 is offline   Reply With Quote
Old 01-29-2014, 06:16 AM   #7
Senior Member
 
jim44646's Avatar
 
Join Date: Jul 2012
Location: Ohio
Posts: 993
SUN #4040
jim44646 is an unknown quantity at this point
Quote:
Originally Posted by Sunline Fan View Post
I've yet to hear a success story of one being brought back to life, but it would be great to hear one! I believe the instructions were to leave it flipped over for about 24 hours, but maybe more time couldn't hurt? I have a printout of the instructions somewhere.
.
I had an old bought Space Age TT that was in storage for 10 years because of husbands death. The frig didn't work. I was going to pitch it when a friend told me to burp it. That said I pulled it from the unit and turned it on it's side for a day, then the top for a day, then on it's other side for a day then back upright. Fired it up and it worked. The gas burner was full of rust from the flu. I cleaned the flu and burner hooked a gas line to it, lit the burner. Low and behold in a few hours the frig was getting cold again. It was still working when I got rid of it.
__________________

__________________
Jim and DW Darlene
2001 T-2553 Sunline Solaris
2006 GMC Sierra Duramax 2500HD 4X4
Firestone Transforce AT tires
Reese Dual Cam Sway Control
jim44646 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fridge not cooling well on LP - resolved Gene Repairs and Maintenance 17 09-04-2013 05:25 AM
Replace Dometic with electric DCprogrammer Repairs and Maintenance 7 06-30-2010 11:51 AM
Cooling unit replacement question EMD_Driver Repairs and Maintenance 5 06-22-2010 06:38 PM
What's the fix? Both2Retired Sunline Travel Trailers 0 08-09-2008 09:27 AM



» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Sunline RV or any of its affiliates. This is an independent, unofficial site.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:17 AM.