Dometic refrig not cooling

[Hman0109]

I have a Dometic refrig in my fifthwheel. This unit, a small one, seems to me that is not cooling enough. Dometic costumer service told me this:
"The fan would be on the back of the outside of the refrigerator assisting to ventilate air to the outside. If you are in a high humidity environment it is more difficult for the air to move across the back of the unit and that is when we typically suggest adding a fan"
Yes, I am in Florida. 90% humid and 90 degrees temp, but I didn't see any fan or hear any fan in the back of the unit.
?????

[rockfordroo]

If you post the model number of your fridge, it may help. If you open the outside access panel, you'll see a wiring diagram and the model number. You may (should) see the fan on the wiring diagram.

You should also make sure your thermistor is pushed up as high as possible. The thermistor is clipped to a fin inside the fridge with a white plastic clip. You slide the clip up and down to regulate the temperature. Sometimes the thermistor slides down inside the clip, but you can't tell. So make sure both the clip and the thermistor are up as high as you can get them.

Reading other posts, it seems like the external Dometic fans are not particularly great. A lot of folks have replaced them with computer fans that run better and blow more air.

I'm sure others will chime in.

BTW - post your model 5th wheel and year also. Someone with the same 5ver may already have figured out the solution to your problem.

[Hman0109]

This is a newer model. It doesn't have the thermistor. I didn't see any fan outside.

[Toddupton]

Sorry still need the model number to give you any more specifics, sorry.

[Hman0109]

Model #DMR702
Serial #51100374

[VinceU]

You can't see the fan on a good day. If fitted(sounds like it is) it will be near the top under a set of find call the condenser. Simple test, set up a small barrel fan to the opening which has lower louvered door removed. Run on fast and if vent is lacking temp will drop quickly. If original Louvered fan is fitted and not working power is furnished via a thermal switch in top row of the same condenser, either the switch or fan motor is defective

[Toddupton]

Originally Posted by VinceU

You can't see the fan on a good day. If fitted(sounds like it is) it will be near the top under a set of find call the condenser. Simple test, set up a small barrel fan to the opening which has lower louvered door removed. Run on fast and if vent is lacking temp will drop quickly. If original Louvered fan is fitted and not working power is furnished via a thermal switch in top row of the same condenser, either the switch or fan motor is defective

X2 good test since sometimes they are very quiet and hard to see with out a mirror or scope

[rodm260]

We have just had a problem with our Dometic 8 year old fridge. Thought it was cooked but after looking on internet I checked the level on freezer floor found leaning badly to back. Leveled and all OK again. Worth checking!!!

[aydodster]

Class C is a 2013 Sunseeker 3170DS and the Dometic frig is DM2652. The frig was working fine at home as I pre-cooled the unit before heading to NC outer banks. Once here both top freezer and frig seemed fine. HOWEVER, as it turns out the frig has gotten warmer over the past few days and now is barely cool inside. I have tried it on gas with no different results and waiting for the local service guy to look at it. No ammonia leek or other issue that I can see with the outside cover off. Not sure what to look at next either. Good luck with yours...

[Toddupton]

Originally Posted by aydodster

Class C is a 2013 Sunseeker 3170DS and the Dometic frig is DM2652. The frig was working fine at home as I pre-cooled the unit before heading to NC outer banks. Once here both top freezer and frig seemed fine. HOWEVER, as it turns out the frig has gotten warmer over the past few days and now is barely cool inside. I have tried it on gas with no different results and waiting for the local service guy to look at it. No ammonia leek or other issue that I can see with the outside cover off. Not sure what to look at next either. Good luck with yours...

Start your own post and you might get some responses.

[rvdoctor]

I have a DMR 702 and it has an automatic fan that came from the factory in my Rockwood 8289Ws. Might want to check that there is no dead airspace above the fridge. Mine cools fine only the door latches are questionable at best. Door latch has been back to dealer 3 times and latch had been replaced once. Still doesn't work right. Guess engineers are always looking to change things even though the old style latches worked fine.

[rockfordroo]

It's more likely the bean counters told them to make it cheaper.

[DoubleDutch]

At this year's rally, a friend indicated that they had replaced the fans on their Dometic and had them out again to look at it. Apparently, the opening for the exhaust was too large, and the FR folks repaired the too large opening. We were having strange noises coming from ours and reviewed the fix for theirs, applied the same fix for ours and now the refer works better than it has for 3 years. Just a thought.