I have the Dometic DM702 in the slideout. On my last trip ithe fridge temp wasn't staying cool at night. It has always been erratic but it got bad on this last trip. It would be as high as 41-46 degrees on some mornings. The outside temp was in the low 39-40's. It has fans in the back compartment but I haven't heard them coming on at night. I have a circulation fan attached to the fins inside but had been turning it off at night. Any ideas or solutions?

Thermistor......Not properly attached or badRecheck that model number?

Better verify the fans are running. Another issue that can occur is low gas pressure.In the past 4 years I've been blessed with 2 bad fans one old one new and 3 bad pressure regulators one old and 2 new. The first replacement fan ran when installed and had failed before we got to our destination 12 hours later. Replaced it again it's been working now maybe 2 years.The first new regulator was bad when I put it on the camper with max adjustable pressure at 8" WC. The second new one lasted about a year. All of the above created refrigerator cooling issues for me.Not sure if Dometic has a similar operating cycle, Norcold does, but another issue that occurs that isn't an actual problem is a defrost cycle that allows the frig to melt any accumulated ice on the cooling fins.You may also want to pull the frig and clean the burner. This may be indicated if the unit works good on AC but not as well on gas.Good luck,

ANY refer in a slide room NEEDS the rear fan/s operating to cool correctly. The design of the 2 sidewall vents instead of a roof vent means that the hot convection air cannot easily flow out the upper sidewall vent. Also, the baffles for the slide design is critical to make sure the air flows up the thru the condenser fans and OUT that door. Just having a fan blowing UP is not enough. It is best to have 2 fans. The original that blows air up thru the condenser and the 2nd mounted just inside that upper door to force the hot air OUT that door. Doug

Thanks for the replies.Old Biscuit - this model doesn't have a thermostor that can be slid up and down the fins. I have had that style on previous RVsJoe - I failed to mention that I am using shore power, not gas.I agree that it is mostly likely an issue with air flow. However, it ran cool temps at night in moderate temps even with the fans not running. The fans run during the day, as they have in the past, when it's warm enough outside. They have usually not run at night even during the summer when it's moderate temps. I find I'm constantly changing the temp settings (there are three levels) but at night, even n the coolest setting it was getting than it should.

The outside compartment is too cold. Turn off the outside fans, even block some of the vents to raise the temp. there into the 50's to low 100's . Then the absorption cooling will work. A shopping or garbage bag stretched behind the lower grille with it to hold the bag should do it. In extreme cold, like 10 below F,and colder, close off the upper grille as well.

Fridge warms up at night! | Good Sam Community

22 Replies

Joe417
Explorer
Jan 06, 2017
Better verify the fans are running. Another issue that can occur is low gas pressure.

In the past 4 years I've been blessed with 2 bad fans one old one new and 3 bad pressure regulators one old and 2 new.

The first replacement fan ran when installed and had failed before we got to our destination 12 hours later. Replaced it again it's been working now maybe 2 years.

The first new regulator was bad when I put it on the camper with max adjustable pressure at 8" WC. The second new one lasted about a year.

All of the above created refrigerator cooling issues for me.

Not sure if Dometic has a similar operating cycle, Norcold does, but another issue that occurs that isn't an actual problem is a defrost cycle that allows the frig to melt any accumulated ice on the cooling fins.

You may also want to pull the frig and clean the burner. This may be indicated if the unit works good on AC but not as well on gas.

Good luck,
Old-Biscuit
Explorer III
Jan 06, 2017
Thermistor......

Not properly attached or bad

Recheck that model number?

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Fridge warms up at night!

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