Fridge not cooling correctly - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-21-2011, 11:00 PM   #1
Member
 
Trailer: Scamp 16 ft
Posts: 34
Fridge not cooling correctly

I just took my trailer (2002 Scamp 16ft) into a local shop to have the piezo ignitor replaces in my Dometic RM2410 refrigerator. The piezo works fine now, but the fridge is now having trouble cooling. The last week it was between 85 and 95 degrees and the fridge, in the shade is only at 40 degrees on max cooling, before it would be down around 20 degrees on the same setting. It does not matter if I run the fridge on 120 or propane. The cooling fins (or flange) on the interior of the fridge only half seems to be working. The fins on the right have frost on them (fridge has been on for a week) but the fins on the left have nothing and don't seem to be doing anything.

I talked to the shop and they said I have a leak in the system and the coolant leaked out and they had nothing to do with that, which I find hard to believe. They are telling me I have to replace the whole fridge at a cost of $800 to $900.

Anyone ever run into something like this or have any advice?

Thanks
Matt
__________________

__________________
Matthew A is offline   Reply With Quote
Old 07-22-2011, 08:29 AM   #2
Senior Member
 
Donna D.'s Avatar
 
Name: Donna D
Trailer: Escape 5.0 TA, 2014
Oregon
Posts: 24,433
These type of refrigerators typically only cool to about 40 degrees BELOW ambient temperature. I don't see anything wrong with your refrigertor... it's doing just that. You can help it out by adding muffin fans to cool the back (under the vent door) and add a fan INSIDE the refrigerator.

If you didn't have any coolant left why would it be cooling at all? I think that "shop" is full of beans....
__________________

__________________
Donna D.
Ten Forward - 2014 Escape 5.0 TA
Double Yolk - 1988 16' Scamp Deluxe
Donna D. is online now   Reply With Quote
Old 07-22-2011, 08:41 AM   #3
Member
 
fidgetboy's Avatar
 
Name: Jason
Trailer: Boler 13' 1973
British Columbia
Posts: 62
Registry
Just to take it back to the basics. Is the trailer level when you are trying to run the fridge? As I know with mine if not level the fridge is just a cooler.
__________________
fidgetboy is offline   Reply With Quote
Old 07-22-2011, 08:57 AM   #4
Member
 
Trailer: Scamp 16 ft
Posts: 34
The trailer is level. Also before taking it into the shop it did a much better job of cooling. It will stay at 40 degrees below ambient temp when on but not in use, door opening and closing. We just took two trips and outside temp was 80 and fridge was 50 to 55 degrees. Has never performed that poorly. The trip just before we took it into the shop it worked great though.
__________________
Matthew A is offline   Reply With Quote
Old 07-22-2011, 11:54 AM   #5
Senior Member
 
Trailer: 1977 Scamp 13 ft
Posts: 267
Quote:
Originally Posted by Matthew A View Post
The trailer is level. Also before taking it into the shop it did a much better job of cooling. It will stay at 40 degrees below ambient temp when on but not in use, door opening and closing. We just took two trips and outside temp was 80 and fridge was 50 to 55 degrees. Has never performed that poorly. The trip just before we took it into the shop it worked great though.
What size is your fridge? Sounds like a blockage in the inner evaporator coils. If its a lighter weight model you can pull it out and turn it upside down for a few mins and shake it. then let it sit upright for an hour or so before turning it back on. Also a good shake on a bumpy road can work too. If you don't smell ammonia Its probably not leaking. But it sounds like a blockage which is not uncommon. Especially if you are getting ice on one end of the coil and not on the other.
__________________
David Morgan is offline   Reply With Quote
Old 07-22-2011, 01:32 PM   #6
Member
 
Trailer: Scamp 16 ft
Posts: 34
It is the larger fridge.
__________________
Matthew A is offline   Reply With Quote
Old 07-22-2011, 06:41 PM   #7
Raz
Senior Member
 
Raz's Avatar
 
Name: Raz
Trailer: Trillium 2010
Vermont
Posts: 4,063
Did the shop remove the fridge when they did the work? If so, check to see if there are any baffles in the air flow path at the back of the fridge that may be bent and blocking the air flow. Good air flow from the bottom vent to the top is a must. If you don't see anything amiss I second Davids suggestion. Raz
__________________
Raz is offline   Reply With Quote
Old 07-22-2011, 07:38 PM   #8
Senior Member
 
Name: Jesse
Trailer: 1984 Scamp 13'
Maryland
Posts: 818
As Donna mentioned, a fan can help remove hot air. Different models perform differently. My OLD Dometic (original to my '84 Scamp) cools like a champ. In 85 degree weather, it will make ice cubes pretty quickly in the tiny freezer compartment. We usually use it in 120v mode.

Before removing the unit, you might want to check out the proper method for unblocking it. My old RV had a troublesome fridge. The proper method was to remove it and lay it on a specific side (not upside down) for a period of time, then reinstall.

That fridge never cooled... At all. Ever.

My brother and his wife were going to buy us a new fridge for the scamp for Christmas, but I told them not to, because this one cools so well. I'm afraid I'll replace it with a pretty new one and it won't cool as well. Plus, this old one has a freezer for making ice. Need that for cocktail hour!
__________________
-Jesse
SOLD! - 1984 Scamp 13 in Maryland.
mcbrew is offline   Reply With Quote
Old 07-26-2011, 10:13 AM   #9
Member
 
Trailer: Scamp 16 ft
Posts: 34
Took it back to the RV shop today to ask them some questions. They are telling me it has a slow leak and they can tell because in the freezer box the screw (or bolt) heads that are visible have corrosion on them. They said the corrosion is a sign that the leak is occurring behing those bolts. I thought all of those bolts had corrosion mostly due to moisture when the fridge gets turned off.

The repair will cost $600, I just have this feeling I am being taken advantage of.
__________________
Matthew A is offline   Reply With Quote
Old 07-26-2011, 08:02 PM   #10
Senior Member
 
Name: Jesse
Trailer: 1984 Scamp 13'
Maryland
Posts: 818
You can buy a brand new Dometic RM2410 for $650.
__________________
-Jesse
SOLD! - 1984 Scamp 13 in Maryland.
mcbrew is offline   Reply With Quote
Old 07-26-2011, 09:08 PM   #11
Senior Member
 
Trailer: 1977 Scamp 13 ft
Posts: 267
Quote:
Originally Posted by Matthew A
Took it back to the RV shop today to ask them some questions. They are telling me it has a slow leak and they can tell because in the freezer box the screw (or bolt) heads that are visible have corrosion on them. They said the corrosion is a sign that the leak is occurring behing those bolts. I thought all of those bolts had corrosion mostly due to moisture when the fridge gets turned off.

The repair will cost $600, I just have this feeling I am being taken advantage of.
I'm taking exception to this one. If your coolant leaked out, you would not have frost on one spot and hot on another. The coolant is ammonia and slow leaks are common yes, on old units. But it does not add up. The three components to the system are water, hydrogen, and ammonia. None of which are particularly corrosive. My dads fridge smelled of ammonia for 2 years before it stopped working. And as it died slowly it it's cooling ability dwindled, but uniformly. I'm going with a corrosion blockage. If that is the case it may be a better bet for the sake of keeping you hair, the pull and replace with a new unit. What they want to sell you is a new cooling system. Usually is more expensive than a new fridge. And all you are saving is the shell.

I'm betting that its a lack of education than purely trying to take advantage of you. A lot of service guys have no clue how gas absorption refrigeration systems work. And they have all the wrong ideas when it comes to servicing and trouble shooting. I would seek another opinion. Or try that bumpy road.

Best regards.
__________________
David Morgan is offline   Reply With Quote
Old 07-26-2011, 09:48 PM   #12
Senior Member
 
Donna D.'s Avatar
 
Name: Donna D
Trailer: Escape 5.0 TA, 2014
Oregon
Posts: 24,433
If it's a blockage, you can either shake it up (drive on a REALLY rough road), or pull it out and turn it upside down, rightside up, upside down, etc. several times over several days. In lots of cases that alone has removed a blockage. YMMV

I'm cheap... I'd try to save it first.
__________________
Donna D.
Ten Forward - 2014 Escape 5.0 TA
Double Yolk - 1988 16' Scamp Deluxe
Donna D. is online now   Reply With Quote
Old 07-27-2011, 01:01 AM   #13
Senior Member
 
Byron Kinnaman's Avatar
 
Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
Oregon
Posts: 6,309
Registry
Quote:
Originally Posted by Donna D. View Post
If it's a blockage, you can either shake it up (drive on a REALLY rough road), or pull it out and turn it upside down, rightside up, upside down, etc. several times over several days. In lots of cases that alone has removed a blockage. YMMV

I'm cheap... I'd try to save it first.
What Donna is referring to is "burping the fridge". You can read how it's done here.
__________________
Byron & Anne enjoying the everyday Saturday thing.
Byron Kinnaman is online now   Reply With Quote
Old 07-27-2011, 09:52 AM   #14
Member
 
Trailer: Scamp 16 ft
Posts: 34
Thanks for all the great advise.
__________________

__________________
Matthew A is offline   Reply With Quote
Reply

Tags
fridge


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
new fridge burr Classified Archives 8 06-30-2011 12:46 AM
Fridge Help Chester Taje Problem Solving | Owners Helping Owners 4 09-21-2009 10:58 AM
Helpful-Links not working correctly Jacki S Forum Admin, News & Announcements 2 07-27-2008 06:25 PM
Dometic fridge cooling unit replacement TonyB Problem Solving | Owners Helping Owners 2 07-25-2008 07:34 PM
Cooling fan for an Icebox? Mike Montville Problem Solving | Owners Helping Owners 8 03-28-2008 05:49 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:52 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.