RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-12-2007, 04:45 PM   #1
3 Rivet Member
 
billberk's Avatar
 
2007 20' Safari SE
Springfield , Missouri
Join Date: Jun 2007
Posts: 218
Refrigerator not getting cold

I have the Dometic 2451 in my 2007 Safari. I had to replace my power converter, so the refrigerator had no power for a few days.

Power is back on now. Refrigerator is on auto setting. Freezer seems to be getting cold but fridge is not. Manual says it could take four hours and it's been at least that. Fan is not running but the switch is on.

The user manual is no help. Do these things just take forever to get cold from a dead start or do I have a problem?

Any suggestions?
billberk is offline   Reply With Quote
Old 08-12-2007, 05:04 PM   #2
Rivet Master
 
Janets Husband's Avatar
 
1977 Argosy Minuet 6.0 Metre
1964 26' Overlander
1977 25' Tradewind
Eastern , Washington
Join Date: Jan 2004
Posts: 865
Images: 6
Quote:
Originally Posted by billberk
I have the Dometic 2451 in my 2007 Safari. I had to replace my power converter, so the refrigerator had no power for a few days.

Power is back on now. Refrigerator is on auto setting. Freezer seems to be getting cold but fridge is not. Manual says it could take four hours and it's been at least that. Fan is not running but the switch is on.

The user manual is no help. Do these things just take forever to get cold from a dead start or do I have a problem?

Any suggestions?
When all else fails "Reboot". Try removing all power from the frig. Cut the AC and DC power let it stand powerless for an hour and then power it up and try again. Let it cool overnight and check it in the morning, that should be enough to get the cooling up to speed. If that doesn't work, it's warranty time.
__________________
Peace
Gary
Janets Husband is offline   Reply With Quote
Old 08-12-2007, 06:39 PM   #3
USN/LAPD Retired
 
Safari-Rick's Avatar
 
2005 25' Safari
North Las Vegas , United States
Join Date: May 2005
Posts: 850
Your refer if it has fins/blades on the upper shelf, you should see a sleeve on the right most blade. You should be able to move it up or down. This ishould be the adjuster for the temp of the refrigerator.

Rick
__________________
2007 Dodge Ram Quadcab 6.7L Diesel w/jakebrake

"Better to have more then you need, then need more then you have because you don't have enough!"
AIR #: 8129
Safari-Rick is offline   Reply With Quote
Old 08-12-2007, 07:12 PM   #4
4 Rivet Member
 
tlavergne's Avatar
 
1978 28' Ambassador
Kenton , Ohio
Join Date: Mar 2002
Posts: 458
Quote:
Originally Posted by Safari-Rick
Your refer if it has fins/blades on the upper shelf, you should see a sleeve on the right most blade. You should be able to move it up or down. This ishould be the adjuster for the temp of the refrigerator.

Rick
Which way do you move it to make it cooler...up or down? What does that do? I never knew I had that until I read this post. There is a wire attached to the sleeve...is that a thermostat of some sort? Nothing about it in my owners manual.
Thanks.
Tom
#8848
tlavergne is offline   Reply With Quote
Old 08-13-2007, 02:34 PM   #5
2 Rivet Member
 
grantb4's Avatar
 
2005 22' Safari
San Juan Capistrano , California
Join Date: Nov 2005
Posts: 87
Wow, I never saw that either! I will have to check it out next time I'm at the trailer. I'm also playing with the 2451 (see the post about the Refer Switch). I think to some degree it helps to have something cold in the fridge. If it's empty or filled with warm food, that might work against you.
grantb4 is offline   Reply With Quote
Old 08-13-2007, 02:44 PM   #6
Rivet Master
 
Silverhobby's Avatar
 
Vintage Kin Owner
Vintage Kin Owner
Vintage Kin Owner
Currently Looking...
Greeeneville , Tennessee
Join Date: Feb 2005
Posts: 1,301
Send a message via Yahoo to Silverhobby
Cooling Takes Time

Quote:
Originally Posted by billberk
I have the Dometic 2451 in my 2007 Safari. Refrigerator is on auto setting. Freezer seems to be getting cold but fridge is not. Manual says it could take four hours and it's been at least that. Fan is not running but the switch is on.

The user manual is no help. Do these things just take forever to get cold from a dead start or do I have a problem?

Any suggestions?
If you are experiencing the heat and humidity that 3/4 of the country is, IT WILL take a while. Make sure the fridge is level, side to side and front to rear. If you want to check it out, put a gallon of water in it and check it for temperature in 24 hours. Since the Rv fridge operates on a gravity principle and no compressor, it is slower than a unit that has refrigerant being moved my a compressor. Hope this helps...
__________________
Kevin with Baity the Lab/Pointer
//------AIR # 7303------\\
WBCCI 17109
visit my restoration blog at:
Silverhobby is offline   Reply With Quote
Old 08-13-2007, 03:21 PM   #7
Rivet Master
 
2005 30' Classic
... , ...
Join Date: Nov 2004
Posts: 512
Images: 12
Just installed a new NorCold and the manual says it takes 10-12 hours to cool.

Norcold has their owners manuals online . . .
GetOutDoors is offline   Reply With Quote
Old 08-13-2007, 03:25 PM   #8
Rivet Master
 
2005 25' International CCD
1954 22' Flying Cloud
1957 22' Flying Cloud
Simi Valley , California
Join Date: Dec 2005
Posts: 2,251
Images: 2
Quote:
Originally Posted by Safari-Rick
Your refer if it has fins/blades on the upper shelf, you should see a sleeve on the right most blade. You should be able to move it up or down. This ishould be the adjuster for the temp of the refrigerator.

Rick
mr rick,

yikes!

just walked out at looked at the 'dream stream parked next to the barn... i had no idea that "slide" was even there.

do tell...

i'll guess...

up for cooler

and

down for

warmer?

kevin
Attached Thumbnails
Click image for larger version

Name:	dream stream reefer.jpg
Views:	128
Size:	41.8 KB
ID:	43137  
Kevbo10 is offline   Reply With Quote
Old 08-13-2007, 03:52 PM   #9
2 Rivet Member
 
grantb4's Avatar
 
2005 22' Safari
San Juan Capistrano , California
Join Date: Nov 2005
Posts: 87
That looks like a different fridge than the rm2451, but thanks for the greaat photo -- and I guess the slider thing is just the sensor. I can't image it makes much difference where it's located because the temperature differential across that blade can't be very high. My guess would be moving it farthest from the freezer would be the best bet -- if moving it does anything at all. You'd think the owner's manual would mention this if it was really a user adjustment.
grantb4 is offline   Reply With Quote
Old 08-13-2007, 04:37 PM   #10
3 Rivet Member
 
billberk's Avatar
 
2007 20' Safari SE
Springfield , Missouri
Join Date: Jun 2007
Posts: 218
The refer was colder this morning, but not what is should be. I've got the slide all the way up. Considering the 100 degrees in the shade temperature around here this week it may just be struggling to get cold.
billberk is offline   Reply With Quote
Old 08-13-2007, 04:43 PM   #11
2 Rivet Member
 
grantb4's Avatar
 
2005 22' Safari
San Juan Capistrano , California
Join Date: Nov 2005
Posts: 87
Quote:
Originally Posted by billberk
The refer was colder this morning, but not what is should be. I've got the slide all the way up. Considering the 100 degrees in the shade temperature around here this week it may just be struggling to get cold.
Do you have anything in it?
grantb4 is offline   Reply With Quote
Old 08-13-2007, 05:04 PM   #12
INSANITY CENTRAL
 
doorgunner's Avatar
 
1986 32' Excella
2014 Interstate Ext. Coach
Citrus Heights , California
Join Date: Aug 2006
Posts: 2,105
Images: 35
google " Snyders rv refrigeration" . They have the fix for 40 bucks. These rv fridges only work for wine chillers when the outside temp is over 95F.
__________________


www.popasmoke.com




Proud Appellation American





Vine View Heights is now closed.

YETI ( 65 Quart )

IGLOO (Ice Cube, 50 Quart )
doorgunner is offline   Reply With Quote
Old 08-13-2007, 05:23 PM   #13
Rivet Master
 
2005 30' Classic
... , ...
Join Date: Nov 2004
Posts: 512
Images: 12
Can't tell from your first post if you have a three-way or two-way (running DC or AC). Have talked with those who are suppose to know, and they say things are not efficent running DC (true/not true?).

I also live in an area that has been hot for the last 1-2 months and did some testing to see how well my new fridge performed. I've attached a pdf to give some kind of comparison (might help?).
Attached Files
File Type: pdf NewFridgeTemps.pdf (6.3 KB, 125 views)
GetOutDoors is offline   Reply With Quote
Old 08-13-2007, 05:44 PM   #14
2 Rivet Member
 
grantb4's Avatar
 
2005 22' Safari
San Juan Capistrano , California
Join Date: Nov 2005
Posts: 87
Wow Spiffy Gem, your fridge is working way better than mine, but mine is empty. If you are at 100F to 110F and are getting 40F in your fridge that's pretty impressive. I guess it might matter which way it faces (sun or shade). I'd be lucky to get 50F-55F under those conditions right now. I think I'm going to try one of these:
title
grantb4 is offline   Reply With Quote
Old 08-13-2007, 06:20 PM   #15
Rivet Master
 
2005 30' Classic
... , ...
Join Date: Nov 2004
Posts: 512
Images: 12
Thanks - I really have no idea what is normal, just trying to help billberk.

FYI, those temp readings were taken with an empty fridge set at it's max setting, working on AC, with Spiffy parked in direct sunlight. Pictures of the fridge install are found in my photo galley. No fans installed - only a thermal process at work . ..

grantb4, when I read the installation manual for my NorCold prior to installation, they had rigid requirements with regard to the area of intake (else the warranty would be void). That fan from Snyder's RV is very intake restrictive and clearly out of specs from Norcold. Can I assume that if you install it that you will have to use it full time?

If so, that fan looks like the one in my computer case. How much battery is needed to run it per hour?
GetOutDoors is offline   Reply With Quote
Old 08-13-2007, 06:41 PM   #16
2 Rivet Member
 
grantb4's Avatar
 
2005 22' Safari
San Juan Capistrano , California
Join Date: Nov 2005
Posts: 87
I think you would have to run it pretty much all the time. Our current fan runs most of the time except when it's cold out. Hopefully the Synder one is quieter, but frankly right now that's the least of my concerns.

Anybody know of a temperature monitoring station that records hourly or something like that? I use one that accumulates a min and max, but I'd like to track the temps in at least 3 places with more detail than that.
grantb4 is offline   Reply With Quote
Old 08-13-2007, 07:12 PM   #17
4 Rivet Member
 
tlavergne's Avatar
 
1978 28' Ambassador
Kenton , Ohio
Join Date: Mar 2002
Posts: 458
In regards to the fan from Snyders. I installed one a few weeks ago in my 1978 Ambassador. The frig vent runs up the curbside wall. After the frig was cool I put my hand on the vent wall. It was noticably hot which leads me to believe that the fan system really pulls the air through there helping it cool. Just an observation...
Tom
tlavergne is offline   Reply With Quote
Old 08-13-2007, 07:34 PM   #18
Rivet Master
 
2005 30' Classic
... , ...
Join Date: Nov 2004
Posts: 512
Images: 12
tlavergne, I would guess just the opposite.

If the air is being moved efficiently, wouldn't that movement keep things, including the flume, from getting that hot?

The thermal process is dependant on the lack of restriction on the intake and the management of restriction at the place of heat transfer to the exhaust. The more cubic inches of space that must be heated, and kept hot, above the heat plates, the hotter that portion of the system must become to keep the thermal process working.

That said, you want the exhaust scoop to be warm so it doesn't cool the air down, else it will cause that cooler air to sink again, and not exit out the exhaust. If that happens, then the thermal process breaks down. The more it happens, the less efficient the system.

I kind of cheat: I had a metal scoop made and have it insulated on the outside with bubble wrap, limiting the out-of-scoop effect.

At least in my thinking . . . for what it's worth.
GetOutDoors is offline   Reply With Quote
Old 08-13-2007, 08:42 PM   #19
2 Rivet Member
 
grantb4's Avatar
 
2005 22' Safari
San Juan Capistrano , California
Join Date: Nov 2005
Posts: 87
It's hard to tell which direction the Synder moves the air. It almost looks to me like it pulls air down from the top, but it's hard to tell from the picture. Anyone have any idea? I think the proof would be how does the fridge operate (without compromising it's life).
grantb4 is offline   Reply With Quote
Old 08-13-2007, 08:58 PM   #20
Rivet Master
 
Dwight's Avatar
 
1999 34' Excella
Joshua , Texas
Join Date: Apr 2002
Posts: 548
Images: 2
thermistor....

How cold should my fridge get? The answer is it depends --- on the ambient temperature, but generally the fridge will operate at 38-42 degrees Fahrenheit (4-6 degrees Celsius). This represents a 40-degree drop from typical ambient temperature, with the temperature control set at 3. A refrigerator in an older coach will lose its efficiency as it ages and it may not be able to maintain this temperature without adjusting to 4 or 5. The freezer section is designed to be 30 degrees (15 degrees Celsius) less than the fridge temperature.

On most side-by-side Dometic fridges and some two-door units, you can also move the thermistor (a white unit with two fine wires going to it) that is attached to the fins in the back of the inside of the fridge. With the fridge set at 3 and normal operating temperatures of 70-75 degrees outside, measure the inside temperature using a fridge thermometer. If the fridge is too warm move the thermistor upwards on the fin (Up is Colder like “Up North”). This will calibrate the temperature and maintain the proper temperature on 3. Hopefully these items make it easier for you to live with you Dometic refrigerator.
__________________
History doesn't repeat itself, people do!
Dwight 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
Water heater replacement Craig Water Heaters, Filters & Pumps 36 12-18-2014 10:13 AM
Saggy Bottom ( rear end ) smily Repairing/Replacing Floor &/or Frame 127 10-01-2006 09:28 PM
new water lines Rob Fresh Water Systems 29 07-11-2006 09:25 PM
Pulling a Bambi with a Ranger? wallycox Tow Vehicles 42 10-17-2002 02:29 PM
cold weather how do air streams do? overlander Our Community 2 10-02-2002 06:10 AM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 06:00 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.