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Dometic CFX3 35 Powered Cooler

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#1 joez3


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Posted 23 March 2021 - 03:56 PM

Is anyone using a Dometic CFS3 35 cooler/ref? Are they any good?



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#2 PaulT


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Posted 24 March 2021 - 02:35 AM

Haven’t used the 35 but my IntechRV Pursue has the 45 installed. Had the trailer for 14 months. The fridge is very quiet and has good temperature control. So far it has worked fine and doesn’t seem to run too much. Better than the Dometic 110l built into my FWC Hawk


Hope this helps.



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I thought getting old would take longer.

#3 ckent323


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Posted 24 March 2021 - 10:36 AM

We have a Dometic CFX-28 that we place in the truck cab behind the center console.  The CFX-28 is the next size smaller than the Dometic CFX3 35 (which is a newer model).

It uses the same compressor and electronics and a similarly built (but slightly smaller) container.

It is quiet and works great.  Have had it since 2018. 

Edited by ckent323, 24 March 2021 - 10:42 AM.

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1993 Dodge Cummins W-250 Club Cab long bed, 2007 FWC Keystone

#4 joez3


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Posted 08 April 2021 - 05:39 PM

I ended up getting the Dometic CFX3 35. Last night I plugged it into my Yeti 1000, using the 12DC, and put 12 cans of soda in it. Set the temp to 38. It ran for several hours then it turned it self off, due to low battery voltage. It looks like the older (non x versions) Yetis don't have a 12v regulated output. That is a problem with the Yeti not the Dometic. 

I changed the setting on the Dometic so it won't shutdown for low voltage, and restarted my little test. After a while I noticed that the compressor stop running and the Dometic is showing a temp of 38. I check the temp of one of my cans and it was 56, the floor of the cooler is only 40. I was expecting my soda to cool down to somewhere around 38.

Does anyone know where the temperature sensor is located? My thinking is I should move my sodas near the temp sensor, so that they would heat up the sensor and cause the compressor to come on.

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