Dometic RM1350 refrigerator not cooling properly

Had similar issues with the 1350 in a slide.
It had 4 small fans in the upper chamber. Replaced with 3 larger ones with more blades. I did it mainly for the fan noise inside but temperature is better regulated now as well.
Use the number 3 setting and maintain 36 degrees. Might hit 40 for an hour or 2 on a real hot day.

Your refrigerator has a defrost timer and it may not be going into defrost every 8 to 10 hours. I was not able to get a picture for you of the location, but look inside the fresh food compartment and inside the teperature control panel should have a hole with sometimes a plastic plug stuck in it. If not there it will be under the kick plate at bottom of fridge. Take a flat head screwdriver and slowly turn to the right until refrigerator stops running. After about 30 minutes if it does not restart, star by again turning slowly clockwise until it starts.

I have a 2013 keystone alpine 5th wheel that was purchased in Jan. everything was working fine until one day the freezer wasn't keeping things frozen. I thought maybe it was too full. I took everything out and noticed the back wall was all iced over. I was able to remove all the ice and everything went back to normal. It's been a few months and two days ago the freezer items were not frozen again but this time the fridge was getting really warm. It again had all the ice build up on the back wall. I've cleared it all out again and still no luck. I switched it to gas and the fridge will kick on and off. The fridge is on a slide with the two vents on the side. They appear to be good. I'm new to owning a trailer. Does anyone have any other suggestions for me. Thank you so much

JC2 wrote:

chevyman486 wrote:
Again thanks for the advice. I think I will try a third fan to see if it will cure my problem. Also I'll put the ice cream in the bottom back part of the freezer or i could continue eating it all gone the same day I buy it. LOL

The type of fans that I have used are the 3-4 inch computer case fans(8-$15) available @ Radio Shack or any computer store. Don't need anything fancy, just a plain Jane fan and perferably controlled with a toggle switch.(Iwould also consider putting any existing fans on a toggle switch if they are easily accessible) Here are some pics to go buy. http://www.amazon.com/s/ref=nb_sb_ss_i_0_17?url=search-alias%3Daps&field-keywords=computer+case+fan&sprefix=computer+case+fan%2Caps%2C223

I went with modified baffles and a pair of 110V 120MM fans mounted to the top side vent panel blowing out. Plugged them directly to a three way adaptor add where the frig plugs in. The only time I run on gas is when traveling. There seems to be no venting issue at 70 MPH running down the interstate. They come on and run full time when on electric. Always need them running in Florida and can simply open panel and unplg for those two days of cool weather here in the winter.

Got the mounting idea here:
http://www.heartlandowners.org/showthread.php/22581-Dometic-RM1350-Operation
Post #17

chevyman486 wrote:
Again thanks for the advice. I think I will try a third fan to see if it will cure my problem. Also I'll put the ice cream in the bottom back part of the freezer or i could continue eating it all gone the same day I buy it. LOL

if i was selling the RV in the near future i would go this route but if i were planning to keep it i would ABSOLUTELY go the residential route,cost be damned(thats just me).i HATE chronic problems and contrary to what you might hear the absorption fridge is a chronic problem when compared to a residential fridge.fix it once,fix it right and get on about the business of having fun.

good luck dealing with the trials and tribulations of an inferior product.i know others will espouse the virtues of theirs but there is no denying a residential fridge is superior technology or there would be absorption fridges in homes not the reliable compressor type we all use and enjoy.

chevyman486 wrote:
Again thanks for the advice. I think I will try a third fan to see if it will cure my problem. Also I'll put the ice cream in the bottom back part of the freezer or i could continue eating it all gone the same day I buy it. LOL

The type of fans that I have used are the 3-4 inch computer case fans(8-$15) available @ Radio Shack or any computer store. Don't need anything fancy, just a plain Jane fan and perferably controlled with a toggle switch.(Iwould also consider putting any existing fans on a toggle switch if they are easily accessible) Here are some pics to go buy. http://www.amazon.com/s/ref=nb_sb_ss_i_0_17?url=search-alias%3Daps&field-keywords=computer+case+fan&sprefix=computer+case+fan%2Caps%2C223

Again thanks for the advice. I think I will try a third fan to see if it will cure my problem. Also I'll put the ice cream in the bottom back part of the freezer or i could continue eating it all gone the same day I buy it. LOL

chevyman486 wrote:
Thanks for the advice. I will probably go to a home style fridge; Gotta have my ice cream. LOL. Ron

That would be an unnecessary expense. If you make sure your exterior fans are working and add another fan, (as mentioned by Doug Rainor) at the top exhaust location,(be it roof or slideout location) your cooling problems will probably be over.

There are many previous posts on this forum and others about converting to a residential fridge but that often is more expensive and time consuming due to additional carpentry mods needed. I find it commendable that some folks will take these steps as the less than stellar quality/safety of some NoCold & Dometic fridges in existing rvs doesn't leave us with a warm fuzzy feeling. If you are in fact unhappy with your current units performance, the most logical/economical replacement would be to replace the cooling unit tubes. etc on the rear of the fridge with heavier duty ones manfactured by the Amish folks. If you call David Force at the phone # on the website, he will try and answer your questions.
http://rvcoolingunit.com/Default.aspx

Lot of good info on the RM1350 here. RM 1350 help Fixes most units.

Ron, I see where you installed a generator... implies you boondock. Putting a a home refer is not a just swap it out. You'll need more batteries and possibly a seperate inverter. Getting the units in and out may be a problem as they may not fit through the door.
If you buy ice cream in rectangle cartons and put it on the bottom against the back wall it will be solid as that is the coldest part of the refer.