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10-06-2019, 05:23 PM
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#1
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Junior Member
Join Date: Oct 2019
Posts: 13
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Dometic refrigerator not cooling
Not sure if this is the right place to post this. I have a large RV fridge with a freezer on top. The freezer is working, but the fridge is not cooling. Any suggestions?
Edited to add the model number: Dometic model #RM1350MIMBSX
Not sure if this is a factor, but this unit was in storage for a year before we bought it.
Thanks
Jim
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10-06-2019, 05:29 PM
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#2
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Senior Member
Join Date: Jul 2017
Location: Suffolk, Va.
Posts: 1,413
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Make sure that the temperature sensor bulb inside of the fridge doesn't have something against it like cheese or meat. That happened to us.
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Michael & Fran Dilday (Baxter & Honey 2 Labs)
'18 Cedar Creek Champagne 38EL - '17 Ford F350 Lariat DRW w/Reese hitch - TST 507 Color TPMS - Garmin RV 770 LMT GPS
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10-06-2019, 05:59 PM
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#3
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 33,607
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Quote:
Originally Posted by jkarstens46
Not sure if this is the right place to post this. I have a large RV fridge with a freezer on top. The freezer is working, but the fridge is not cooling. Any suggestions?
Thanks
Jim
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First, you need to post the fridge model number.
Second, if it's a 2-way fridge, how long have you waited for it to cool? It generally takes 6-8 hours for a RV fridge to get cold.
Third, are you running it on propane or electric?
If it's a RV absorption fridge, the freezer always gets colder first.
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity
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10-06-2019, 06:41 PM
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#4
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Junior Member
Join Date: Oct 2019
Posts: 13
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Quote:
Originally Posted by bikendan
First, you need to post the fridge model number.
Second, if it's a 2-way fridge, how long have you waited for it to cool? It generally takes 6-8 hours for a RV fridge to get cold.
Third, are you running it on propane or electric?
If it's a RV absorption fridge, the freezer always gets colder first.
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Thanks for this information. You brought up some good points. I am planning on double checking these things tomorrow.
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10-06-2019, 08:11 PM
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#5
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,074
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Also, is the refrigerator in a slide?
Many that are, need better/additional cooling fan(s) to aid in heat removal.
There are a ton of threads on adding fans.
Also make sure the center door flapper closes far enough for the right door to seal properly against it.
On ours, it wasn't swinging all the way closed and tons of cool air was escaping between the doors.
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2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2017 Ford F-Series SCREW 4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
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10-06-2019, 09:20 PM
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#6
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Senior Member
Join Date: Sep 2019
Posts: 1,669
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And put something in it. Empty refregrators don't feel cold
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10-06-2019, 09:27 PM
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#7
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 33,607
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Quote:
Originally Posted by jkarstens46
Thanks for this information. You brought up some good points. I am planning on double checking these things tomorrow.
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You didn't answer the question about how long you waited, before you checked the fridge temperature.
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity
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10-07-2019, 06:22 AM
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#8
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Junior Member
Join Date: Oct 2019
Posts: 13
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Quote:
Originally Posted by bikendan
You didn't answer the question about how long you waited, before you checked the fridge temperature.
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I turned it on, and only left it on about 4 hours. Still didn't feel cold, but I am going to try it again today. I probably didn't leave it on long enough.
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10-07-2019, 06:23 AM
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#9
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Junior Member
Join Date: Oct 2019
Posts: 13
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Quote:
Originally Posted by 5picker
Also, is the refrigerator in a slide?
Many that are, need better/additional cooling fan(s) to aid in heat removal.
There are a ton of threads on adding fans.
Also make sure the center door flapper closes far enough for the right door to seal properly against it.
On ours, it wasn't swinging all the way closed and tons of cool air was escaping between the doors.
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It isn't in a slide, but you are right about the door. It is a double door, and we do have to be careful when closing it.
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10-07-2019, 07:36 AM
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#10
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Site Team
Join Date: Oct 2014
Posts: 15,266
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The cooling coils in the freezer and fridge are in series. If the freezer is working then the fridge is as well. As mentioned check the temp sensor on the fridge coils and put a bottle of water in it. Check the temp of the water after 8-10 hrs. bulk of the heat shot term absorbing capacity in an RV fridge comes from the contents. An empty fridge warms up quickly when the door is opened.
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10-07-2019, 08:24 AM
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#11
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Junior Member
Join Date: Oct 2019
Posts: 13
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Quote:
Originally Posted by Flybob
The cooling coils in the freezer and fridge are in series. If the freezer is working then the fridge is as well. As mentioned check the temp sensor on the fridge coils and put a bottle of water in it. Check the temp of the water after 8-10 hrs. bulk of the heat shot term absorbing capacity in an RV fridge comes from the contents. An empty fridge warms up quickly when the door is opened.
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Thanks. I will try these tips. I already turned it on this morning. I was thinking the same thing, that if the freezer is working so is the fridge. This one is just a bit different than our last one, so I wasn't sure.
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10-07-2019, 10:14 AM
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#12
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Senior Member
Join Date: May 2015
Posts: 1,051
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The last two way fridge I had was replaced. The freezer worked properly, the refrigerator wouldn’t cool below 60 degrees. All of the above tips were followed. Dometic approved replacement under warranty. Freezer working does not mean refrigerator is working.
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2017 Coachman Chaparral 336TSIK
2015 F350 6.7
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10-07-2019, 01:13 PM
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#13
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Senior Member
Join Date: Apr 2016
Location: Cedar Creek Lake, TX
Posts: 3,477
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Quote:
Originally Posted by jkarstens46
I turned it on, and only left it on about 4 hours. Still didn't feel cold, but I am going to try it again today. I probably didn't leave it on long enough.
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Leave it on overnight and then let us know how it is.
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Cedar Creek Lake, Texas
2019 Keystone Loredo 290SRL
2019 Ram 2500 4x4 Cummins crew cab
Andersen hitch
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10-07-2019, 02:04 PM
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#14
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 33,607
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Quote:
Originally Posted by CedarCreekWoody
Leave it on overnight and then let us know how it is.
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THIS!^^^^^^^^
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity
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10-07-2019, 02:08 PM
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#15
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Junior Member
Join Date: Oct 2019
Location: Naples, Fl.
Posts: 3
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Its going to be the thermistor. Cheap and easy to replace. Google it.
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Pete D.
Naples, Fl.
2019 Flagstaff 25FKS.
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10-07-2019, 03:51 PM
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#16
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Junior Member
Join Date: Oct 2019
Posts: 13
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Update: After leaving the refrigerator on for over 9 hours, I checked it and it is working! I think it just needed more time. However, I appreciate all of the suggestions and tips and will keep these in mind.
Thanks everyone!
Jim
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10-07-2019, 06:02 PM
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#17
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Senior Member
Join Date: Jul 2017
Location: Almost Tijuana
Posts: 1,233
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Just something for future reference - we found that if the TT was not pretty close to level, it took longer to cool down. I'm talking about being on the edge of what they recommend vs within a degree of being level.
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I just want to be outside!!!
'17 Salem Cruise Lite 210RBXL
'11 F150 5.0
Only one shedding mutt now RIP Yoshi
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10-17-2019, 03:44 PM
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#18
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Senior Member
Join Date: Nov 2016
Location: Tennessee
Posts: 148
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Went to a good seminar at the California RV show on absorbtion refrigerators. They could not stress enough about the unit being level and to put a recirculating fan inside at the bottom of the unit when cooling down.
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2019 Ram 3500 DRW HO Cummins, Aisin Trans and 4.10 gears.
2017 Flagstaff 8529 IKBS Classic Platinum Edition
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10-18-2019, 06:12 AM
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#19
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Junior Member
Join Date: Oct 2019
Posts: 13
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Quote:
Originally Posted by Beauty and Beast
Went to a good seminar at the California RV show on absorbtion refrigerators. They could not stress enough about the unit being level and to put a recirculating fan inside at the bottom of the unit when cooling down.
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I am definitely planning on installing a fan inside.
Jim
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