Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 10-24-2021, 07:42 PM   #1
Member
 
Monaco Owners Club
Join Date: Jul 2016
Location: Texas
Posts: 92
Dometic refrigerator problem and conversion to residential refer

Hello All
My dometic 14 cu ft refrigerator NDA 1402 has a freezer that is not getting below 28 degrees F. The fridge is getting down to 33 F. A service tech who was not familiar with the unit said he called dometic and was told the PC board 50-028602-c was bad and they did not make those any more. Anyone one know where I might find one?

Failing that I will have to modify the coach to fit a residential refer in that space. I like to boondock so will miss the Dometic. I have 4 each, 110 amp hr. 6 volt house batteries with a 2000 watt pure sine wave inverter and one 30 amp solar panel on the roof.

Any advise/guidance on a residential refer replacement or pc board would be apricated.

I've attached a picture of my current side by side fridge in this post, I tried to anyway.

https://www.irv2.com/forums/attachment.php?attachmentid=347086&stc=1&d=1635121 652[/IMG]

kovalsmt
2009, 42' Monaco Camelot
425 Cummings ISL
F-150 towd
Attached Thumbnails
Click image for larger version

Name:	IMG_0572.jpg
Views:	17
Size:	119.1 KB
ID:	347086  
kovalsmt is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 10-24-2021, 07:53 PM   #2
Junior Member
 
sysadm47362's Avatar
 
Workhorse Chassis Owner
Georgie Boy Owners Club
Join Date: Jan 2021
Location: Indiana
Posts: 7
Welcome to IRV2.

I have been looking at the 12 volt conversions from JC Refrigeration. Convert Dometic and others to 110 volt, 12 volt or replace the existing refrigeration mechanism with new propane / electric.
__________________
2000 Georgie Boy Pursuit 3205 P32 / 454 4L80E
2003 Dodge 1500 Quad Cab Hemi
2005 Chrysler PT Cruiser Limited
sysadm47362 is offline   Reply With Quote
Old 10-24-2021, 09:43 PM   #3
Senior Member
 
PABO05's Avatar
 
Join Date: Jun 2018
Posts: 611
I did the JCRefrigerant three years ago.
Using my refrigerator cabinet, and replaced the cooling unit.
This is a one man job and a few hours.
Let refrigerator out overnight to cure the adhesive.
I went with the 120V compressor.
As of today NO ISSUE..
This way there is no retrofit.
__________________
2005 FLEETWOOD EXCURSION 39L
2010 HONDA ELEMENT TOAD.
FMCA, GOOD SAM FCOC MEMBER.
PABO05 is offline   Reply With Quote
Old 10-24-2021, 10:41 PM   #4
Senior Member
 
Join Date: Nov 2015
Posts: 18,941
IF the Circuit Board was faulty then the fridge would not cool on AC and/or on LP

Circuit board controls function of heat sources


Freezer (and food compartment) have 2 thermistors each
One to measure 'air' temp and one to measure 'surface' temp
Freezer temp sensing is factory pre-set (non-adjustable)...temp setting on Fridge control panel are for food compartment temp controls
*Freezer cooling process is first in line so it gets the coldest
On A/C temp setting is ~0*F and on Gas 7*F

The 'air' temp and 'surface' temp thermistors are used to control freezer fan and defrost cycles

Sounds like the freezer thermistors are failing NOT the Lower Circuit Board

Are you getting ANY error codes?
Is the Freezer fan working?
Does the fridge go into defrost mode ---should happen roughly every 24 hrs?
Have you placed a thermometer in freezer to compare temp vs displayed temp?

You can 'test' the thermistors resistance.
4 Pin P2 connector ---freezer (Pins 1 & 2/Air---- Pins 3 & 4/Surface)
4 pin P3 connector.....food (Pins 1 & 2/Air ------ Pins 3 & 4/Surface)

Pg 15 for info and Pg 49 for resistance values
https://myrvworks.com/wp-content/upl...ice-Manual.pdf
__________________
Is it time for YOUR Medication or Mine?
Dodge 3500 w/Tractor Motor & NUWA 5vr
US NAVY---USS Decatur DDG-31
Old-Biscuit is online now   Reply With Quote
Old 10-24-2021, 11:04 PM   #5
Senior Member
 
Join Date: Jul 2019
Posts: 242
Have you tried tapping on the coils? My Dometic Rm1350 was not getting cold enough. So I simple took a small piece of metal and tapped on the coils. After that it now cools like it should. This is not a permanent fix, but it has been working for months now. My freezer gets to 0 and fridge to 33.
SavnTheWales is offline   Reply With Quote
Old 10-25-2021, 04:49 AM   #6
Senior Member
 
be-happy's Avatar
 
Join Date: Sep 2019
Posts: 247
Last year I went the way of JC Refrigeration and will not turn back. I have a NorCold, but JC takes care of either.

I went with the totally 110 unit as I do not dry camp and this was a great fit for me. The job was very easy to remove the old and install the new. Before jumping into a total replacement I would look into what JC can do.

https://jc-refrigeration.com/
__________________
2007 Itasca Meridian 36SE
Great Wife & Max the boarder collie
Branson MO the best place to live
be-happy is offline   Reply With Quote
Old 10-25-2021, 09:41 AM   #7
Senior Member
 
jacwjames's Avatar
 
Monaco Owners Club
Join Date: Jun 2014
Posts: 9,998
From some of the responses sounds like you may be able to troubleshoot and repair.



We also do quite a bit of boon docking. Our Norcold crapped out ~3 years ago, it never really did cool correctly, freezer was OK most of the time but refrigerator would not.

I had bought a Samsung RF18 and used it while building our new house. After the Norcold crapped out swapped out for the Samsung. Because of the furnace underneath it was a chore to get it to fit but it worked.



Finally got a chance to give the Samsung a good test this summer, took it for a 5 week 4500 mile trip boon docking most of the time. It hardly changed my generator usage, ran it ~1 hour a night to bring the batteries up to 90% and run the AC to cool the coach and then went to bed and when I woke up would still have ~75% battery left. Batteries would charge while driving, and I have 325 watt solar, on some days the solar kept the batteries up.

I was in ND in July, 105F outside, luckily I was plugged into 50 amp so I could run both AC's and do laundry. It was hot hot hot, temps in coach were +85F but the Samsung performed flawlessly. I have temp monitors in freezer and fridge, the freezer stayed at -4F even with the sun beating down on that side of the coach. Dropped ice all day long.


I am 100% satisfied with my switch to the residential.
__________________
Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
jacwjames is online now   Reply With Quote
Old 10-25-2021, 02:53 PM   #8
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 24,637
It's very unusual that the freezer is warm but the fridge is not. The freezer gets first call on the available cooling.


Like Old Biscuit, I would be highly skeptical that the circuit board is bad if the fridge is cooling OK. I suggest you do as he suggests to better determine the problem.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is in the Ocala Nat'l Forest near Ocala, FL
Gary RVRoamer is offline   Reply With Quote
Old 10-25-2021, 03:14 PM   #9
Member
 
Monaco Owners Club
Join Date: Jul 2016
Location: Texas
Posts: 92
Thank you. It is not going into the defrost mod unless I manually do it, Not sure if the fan is coming on I'll check it out tomorrow when I get back to the coach. I don't remember hearing it. The freezer is operating at 28 to 30 degrees and the fridge is 33-35 degrees.
I see they have thermistors at Amazon. I had a service tech check it who only called Dometic and was told it was bad and they don't make them anymore. I wanted a second opinion from IRV 2 as the tech said he never so one like mine before. Thank you for the feedback, I'll let you know how it goes.
Regards
Mike
kovalsmt is offline   Reply With Quote
Old 10-25-2021, 07:12 PM   #10
Senior Member
 
Join Date: Nov 2015
Posts: 18,941
Quote:
Originally Posted by kovalsmt View Post
Thank you. It is not going into the defrost mod unless I manually do it, Not sure if the fan is coming on I'll check it out tomorrow when I get back to the coach. I don't remember hearing it. The freezer is operating at 28 to 30 degrees and the fridge is 33-35 degrees.
I see they have thermistors at Amazon. I had a service tech check it who only called Dometic and was told it was bad and they don't make them anymore. I wanted a second opinion from IRV 2 as the tech said he never so one like mine before. Thank you for the feedback, I'll let you know how it goes.
Regards
Mike

Defrosting is initiated automatically every 24 hours, at 1:00
AM ( based on clock setting).
However, a defrosting may be skipped if the air temperature in the freezer is greater than 18 F, or the DC voltage is less than 10.5 volts.
__________________
Is it time for YOUR Medication or Mine?
Dodge 3500 w/Tractor Motor & NUWA 5vr
US NAVY---USS Decatur DDG-31
Old-Biscuit is online now   Reply With Quote
Old 10-25-2021, 07:41 PM   #11
Senior Member
 
Barneyb's Avatar


 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: Jan 2019
Location: Wadsworth, Ohio
Posts: 265
2 years ago went with the JC Refrigeration cooling unit swap, very happy with it but if I had it to do again I’d go with a residential fridge. Of course that’s because our usage of the coach has changed and we don’t used it every weekend like we use to.
__________________
Barney & Penny with our two puppies Lucy & Dixie
2008 Fleetwood Discovery
2020 Jeep Cherokee Trailhawk
Barneyb is offline   Reply With Quote
Old 10-26-2021, 12:50 PM   #12
Member
 
Monaco Owners Club
Join Date: Jul 2016
Location: Texas
Posts: 92
I was all set to tackle the fridge today now that I have the service manual. Before I left Saturday I reconnected a drain hose I found disconnected outside behind the fridge, tapped on the coils and did a manual defrost. Don’t know what happened but I got back to the coach today, Tuesday, and the freezer was at 2F and fridge was at 33F.
Thanks to all for sharing your experience and knowledge. I’ll keep my fingers crossed that it stays good.
Best Regards
Mike
kovalsmt is offline   Reply With Quote
Old 10-26-2021, 12:56 PM   #13
Senior Member
 
96 Wideglide's Avatar
 
Holiday Rambler Owners Club
Join Date: Aug 2010
Posts: 8,183
Quote:
Originally Posted by sysadm47362 View Post
Welcome to IRV2.

I have been looking at the 12 volt conversions from JC Refrigeration. Convert Dometic and others to 110 volt, 12 volt or replace the existing refrigeration mechanism with new propane / electric.
They don't make a compressor kit that swaps into this Dometic model.
__________________
Ben & Sharon
2008 43' Holiday Rambler Scepter PDQ
96 Wideglide is offline   Reply With Quote
Old 10-27-2021, 11:12 AM   #14
Member
 
Monaco Owners Club
Join Date: Jul 2016
Location: Texas
Posts: 92
[QUOTE=PABO05;5961826]I did the JCRefrigerant three years ago.
Using my refrigerator cabinet, and replaced the cooling unit.
This is a one man job and a few hours.
Let refrigerator out overnight to cure the adhesive.
I went with the 120V compressor.
As of today NO ISSUE..
This way there is no retrofit.[/QUOTE

Thank you, l hated the thought of modifying the place were it sets. Thanks. I fixed a drain hose from the fridge and 2 days later it started working the best Ive ever seen it.
kovalsmt is offline   Reply With Quote
Reply

Tags
conversion, dometic, problem, refrigerator



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
Insurance Discount for a Residential Refrigerator Conversion Bondman01 Just Conversation 3 03-18-2019 07:19 PM
Residential refrigerator conversion CoachC Newmar Owner's Forum 7 09-02-2018 02:16 PM
Wiring conversion for residential refrigerator in a 2004 Dynasty Lovin our RV Monaco Owner's Forum 12 01-02-2018 07:26 PM
Residential refrigerator propane conversion lenny-shawna RV Systems & Appliances 16 09-14-2015 03:01 PM
2004 Monaco Diplomat Residential Refrigerator Conversion Texas42 Class A Motorhome Discussions 9 10-14-2014 04:12 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 02:41 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.