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06-24-2022, 10:59 AM
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#1
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Senior Member
Join Date: Oct 2020
Location: San Jose, California
Trailer: 2022 5.0 TA
Posts: 678
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Dometic 3-way fridge makes noise when hot
When it’s 90+ outside, our Dometic makes noise — like a fan running. You can hear it in the trailer, and even more so outside the trailer near the fridge.
I searched for threads mentioning this noise, because I kinda expected that I’m not the first one to notice this, and maybe it’s normal.
Is it a bad sign or is it normal for the fridge to make noise when running and the outside air temperature is high?
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06-24-2022, 12:33 PM
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#2
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Senior Member
Join Date: Feb 2010
Location: Oswego, New York
Trailer: 2017 Escape 21C, 2018 Ford F150
Posts: 5,373
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There might be a "Texas Fan" added above the stack in the back of the refrigerator. My 2017C has one as an option. There is a switch inside the outside door (I moved mine to the inside of the trailer) to turn it off. It has a thermostat that only runs it when the temperatures are above 85°F - 90°F.
There is a notice above my refrigerator requiring that the fan be switched off when traveling. There was a problem when it was running & the trailer was moving at highway speeds that blew a thermal fuse, shutting down the refrigerator in all three modes until replacement ed. A wired in device, not an easily replaceable fuse. I don't know if they have solved the problem or there is a different fan in newer refrigerators, but if you find a switch labeled fan inside the outside door, I'd shut it off when traveling.
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06-24-2022, 12:59 PM
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#3
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Senior Member
Join Date: Oct 2020
Location: San Jose, California
Trailer: 2022 5.0 TA
Posts: 678
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Thank you Jon!
I’ll take a look. We do travel in some hot weather, and I run the fridge on propane while traveling.
May start using DC instead while traveling, but not until we have more battery capacity.
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06-24-2022, 07:21 PM
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#4
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Senior Member
Join Date: Aug 2015
Location: Naples, New York
Trailer: 2020 Esacpe 19'(Hillbilly Heaven) ETI best named trailer of the year
Posts: 1,204
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My 2020 has a fan that runs when it gets hot . Its normal and draws very little dc power. I found not parking where the sun hits the vent side will reduce the time it runs by at least 50%
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06-25-2022, 11:37 AM
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#5
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Senior Member
Join Date: Mar 2021
Location: Mesa, Arizona
Trailer: 2021 21NE
Posts: 516
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Yep, cooling fan. Kind of annoying when one is trying to fall asleep.
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06-25-2022, 11:51 AM
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#6
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Senior Member
Join Date: Jun 2010
Location: Central, Pennsylvania
Trailer: Escape#5 2022 E19
Posts: 26,268
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That should probably only come on when using propane, but not if 120v use?
__________________
Jim
Sometime life gets in the way of living.......
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06-25-2022, 11:54 AM
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#7
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Senior Member
Join Date: Mar 2021
Location: Mesa, Arizona
Trailer: 2021 21NE
Posts: 516
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Ours comes on with all 3 sources. It only stays on a few minutes then cycles off. Just long enough to get to sleep, then I don't notice it after that.
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06-25-2022, 01:34 PM
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#8
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Junior Member
Join Date: Sep 2018
Location: Central PA, Pennsylvania
Trailer: 2019 Escape 19
Posts: 14
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I don't believe my E19' has that fan switch inside. Is there another way to determine if that fan exists. I ask as I have a "Titan Motorhome Fridge Fan" sitting on my desk right now. It was recommended by a non-egg friend. My previous trailer was a used Casita that had an auxiliary cooling fan already installed so I thought adding one to my E19 was a good proactive project. Thoughts??
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06-25-2022, 01:54 PM
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#9
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Senior Member
Join Date: Oct 2020
Location: San Jose, California
Trailer: 2022 5.0 TA
Posts: 678
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Quote:
Originally Posted by kathytony1985
Ours comes on with all 3 sources. It only stays on a few minutes then cycles off. Just long enough to get to sleep, then I don't notice it after that.
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Yeah, ours runs with propane or electric power. I’m glad to find out this is normal, and I’ll look for the “Texas fan” switch and report back to this thread.
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06-25-2022, 02:23 PM
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#10
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Senior Member
Join Date: Feb 2010
Location: Oswego, New York
Trailer: 2017 Escape 21C, 2018 Ford F150
Posts: 5,373
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The refrigerator (Dometic DM2663LBX ) installed in my 2017 21C did not have a fan of any kind installed by Dometic. The "Texas Fan" was an option installed by Escape. I believe that in newer versions of the refrigerator Dometic included a fan that I suspect does not need to be shut off when traveling.
Some discussion of the problem in this thread.
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06-25-2022, 03:00 PM
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#11
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Senior Member
Join Date: May 2020
Location: Overbrook, Kansas
Trailer: 2021 E19 (Padawan)
Posts: 1,976
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My ‘21 2663 in my ‘19 does not have a fan. Freezer works great, fridge does not always.
__________________
Randy & Barb
1998 C 2500 (Cruncher) and 2021 Ranger (Yoda)
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06-27-2022, 09:17 AM
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#12
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Senior Member
Join Date: Oct 2020
Location: San Jose, California
Trailer: 2022 5.0 TA
Posts: 678
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I opened the outside panel up for the fridge yesterday and looked for a switch to turn off the fan — none found. I did find a wiring diagram that shows the fan is dc powered.
As Jon mentioned, this must be a newer version of the fridge and it now includes a fan.
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06-27-2022, 10:38 PM
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#13
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Member
Join Date: Feb 2015
Location: Westport, Massachusetts
Trailer: 2018 17B
Posts: 79
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My 2018 17b does not have the fan—at least I didn’t order it— and when it’s hot outside it makes a terrible groaning sound in both propane and ac mode. Eventually it will stop. I have learned to just ignore it, but it sure did panic me at first.
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