Dometic Fan Question

RNuzzolo · 07-25-2015, 05:22 AM

Hope someone can help with this question. I've read a bunch of threads about the Dometic refrig cooling problem. I have a model RMS 1350 and I had a third fan installed and it seemed to help a lot with cooling. Last night I noticed the fans have stopped running. When they run I can hear them from inside the coach. None of the fans are working now and the refig temp has gone up to around 45. I think there is a thermister somewhere but not sure where to look. Does the thermister act like a fuse? Can anyone tell me where it is located and how to check it? Appreciate any help anyone can offer.

Billr · 07-25-2015, 07:45 PM

Don't know if it controls the fans or not, but the fridge thermostat is a small piece of plastic mounted on the fridge fins running just under the freezer. It has a wire attached and will slide up or down. Mine has fallen off a couple of times. Might check it.

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RNuzzolo · 07-25-2015, 07:57 PM

Thank you I will check it. For whatever reason after about 24 hours of nothing the fans started working again. Refrigerator was up to 45 degrees but is now back at 36 which I think is normal.

lefaivre · 07-26-2015, 01:01 AM

I had similar problems. I have just purchased auxiliary cooling fans both interior and exterior.from.rvcoolingunit.com.

Having.them installed on Monday. Looking forward to excess cooling capacity

Crockett · 07-26-2015, 01:36 AM

the thermister controls refridgerator temp. if it fails you over cool generally. a thermostatic switch controls the fan usually. you may have an intermittant open, loose connection or possibly the switch, that is causing your problem.

RNuzzolo · 07-26-2015, 08:29 AM

Thank you for your reply. I'll just have to wait and see how it goes. Working OK now.

RNuzzolo · 07-26-2015, 08:30 AM

The extra fan outside and the little fan inside sure helped my unit. Good luck.

15berkxl · 07-26-2015, 09:14 AM

Quote:

Originally Posted by RNuzzolo

Thank you I will check it. For whatever reason after about 24 hours of nothing the fans started working again. Refrigerator was up to 45 degrees but is now back at 36 which I think is normal.

I had a MH with a No Cold unit once it had a defrost cycle that would kick in to defrost the fins. Always amazed me that could not get decent cooling but would lose ground when it defrosted. Just maybe yours has a similar feature almost sounds like it.

Wayne

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