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Old 09-20-2016, 05:48 PM   #1
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Dometic DM2652 Thermistor replacement

We have a DM2652 frig in a slideout on a Rockwood 8329, 2014 Signature. Continued poor cooling in frig,freezer is always fine. Have replaced single fan below fins on rear of frig and blocked off air gap above frig so air flow must go out exterior top vent. Added 2 larger fans below cooling fins on back and tide them to the thermostat wires on the fins. Both fans now run when that thermo. closes. Removed plastic Thermistor clip in frig and clipped directly to fin with clothes pin. Frig temp at mid day is still 45 to48. Outside air is 90 plus in sun. Slide is closed. First look in the AM temp might be 43 to 44 as the lowest. Really such poor performance. Has anyone tried the adjustable Articca replacement kit for the existing Thermistor? At least this gives you an adjustmentwent to the reostat to turn colder than just relying on the position of the current Thermistor. Ours has always been at top of last fin on the right. Come on folks, with today's techs, some say the US went to the moon, there should a fix to help many folks with this problem. Thanks for your time....
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Old 09-21-2016, 11:05 AM   #2
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How old is this fridge?

Can you post pics of the fans and blocking that you added?

Those adjustable thermistors work, but before you replace the thermistor, try removing it from the fin completely and let it run a day and see if it makes any difference.

I'd also suggest that you bypass the thermostat (At least temporarily) that the fans run on and let them run all the time and see if that makes a difference.
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Old 09-21-2016, 02:50 PM   #3
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Snip the Tip

Posted numerous times on here. Replace the thermistor...or better known as the wire thingy in the fridge....with a product called snip the tip. SNIPTHETIP.COM. Yes it works.
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Old 09-21-2016, 05:38 PM   #4
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Bama Rambler , I did move the thirmistor and it got warmer, also jumped the wires on the fin thermostat so fans ran all the time still not any consistent improvement in cooling. The unit is a 2014.will try to figure out how to do pics. Used swim noodle ,cut to size to fill gap above fins that blocks off the inside top of frig.
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Old 09-21-2016, 05:40 PM   #5
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Bama Rambler, sorry about the auto spell error
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Old 09-21-2016, 06:18 PM   #6
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Bama Rambler pics

Here are some pics of fans, noodle and blocking to direct fan air over fins. Hope all this will help, l have ordered the snip the tip Articca thermostat and will install it. Hope all this helps. Tired of using portable 12v frig/ freezer when we have atop of the line trailer. Thanks all, slyfox
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Old 09-21-2016, 08:01 PM   #7
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hidee ho

David 01 has good info but the actual web site is SNIP-THE-TIP.COM. I am looking into it right now and will post results later if I do the project. Good luck all!
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Old 09-22-2016, 12:12 PM   #8
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Since moving the thermistor made some difference (even if it was the wrong direction) replacing it with the adjustable unit may help.

As far as the insulation, it may not help much, but I think I'd use something a little more heat resistant than a pool noodle.

I think the closer you can get the back of the fridge to fit the channel in the RV the better these things cool.
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Old 09-22-2016, 12:25 PM   #9
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It's hard to tell on those things, but doesn't look like anything is wrong.

It'd be interesting to know how close the cooling unit parts are to the channel from top to bottom.
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Old 09-23-2016, 09:03 AM   #10
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One possible contributing factor especially at that high ambient):
Look up the installation guide for that ref. FR totally ignored (and later paid dealer to correct). Your noodle (good) is one area covered. Check guide for other areas.
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