Domestic fridge not cooling

VLaurie1799 · Jul 30, 2018

Need help, have a RM3963 Dometic fridge that is not working properly. 2011 BH 3185RL, fridge is in slide. Freezer is working great, fridge runs from 36 (early morning ) to 46 evening. Use to run 36 to 38 all the time.Have read all the forms, this fridge has worked great for 7 years gas or electric is sitting level good power source good propane and the fan at back is coming on when it should I think?

danemayer · Jul 30, 2018

If the freezer is working well, you may have air leaking into the refrigerator compartment.

Check the seals by dragging a dollar bill through with the door closed.

Also check the condensation drain hose. There should be a drain tube sticking outside the exterior vent cover. At the end of the hose there should be a circular insert that allows water out, but limits air coming in. If the tube is broken or the insert at the end is missing, warm air can enter the refrigerator compartment.

VLaurie1799 · Jul 30, 2018

Seal is good, hose and plug brand new?

JohnDar · Jul 31, 2018

Make sure the thermistor clip has not slipped down on the fin inside the fridge. If your trailer is a 2011, how is the drain hose brand new? The hoses on older units are cheap plastic that gets brittle in the hot slide and crumbles easily. If you remove the lower outside vent cover, you can check that it is still intact.

Several of us have had to replace that hose after not too many years.

Sent from my iPhone using Tapatalk

rhodies1 · Jul 31, 2018

Also check to see if freezer door has settled down on the pin due to wear from opening and closing.the door may not be fitting as snug as possible.I had my left side freezer icing up and noticed doors where not level.I removed door by unscrewing nut at top : removed door and placed a small plastic washer over door pin which raised door slightly.No more iceing of freezer,air was entering freezer at top side of door.

VLaurie1799 · Jul 31, 2018

Changed the hose last week with new end. Checked one hour ago now at 36? Sorry checked door all good

robhowden · Jan 15, 2019

Here's another issue....same deal, freezer appears to be working but fridge is 53 degrees.

1. Dollar bill test - is the bill not supposed to slide out at all? My slides out with only light resistence.

2. My fridge is a Dometic RM1350, and people are talking about testing the thermistor - mine doesn't attach to the fins, but is instead has a little cylinder thermometer that's in a holder on the roof of the fridge. And the wire goes into the back of the fridge. It's the evening and pouring outside, so I can't go see if I can access where the thermistor connects.

3. I'll check for ventilation issues in the morning, as well.

danemayer · Jan 16, 2019

robhowden said:
Here's another issue....same deal, freezer appears to be working but fridge is 53 degrees.

1. Dollar bill test - is the bill not supposed to slide out at all? My slides out with only light resistence.

2. My fridge is a Dometic RM1350, and people are talking about testing the thermistor - mine doesn't attach to the fins, but is instead has a little cylinder thermometer that's in a holder on the roof of the fridge. And the wire goes into the back of the fridge. It's the evening and pouring outside, so I can't go see if I can access where the thermistor connects.

3. I'll check for ventilation issues in the morning, as well.

If the freezer is working well but the fridge compartment is at 53, you probably have an air leak. Light resistance on the dollar bill test may be ok.

Check the flap operation on the left hand door. If the flap sticks, your refrigerator will never cool. Also check for the end cap on the drain hose on the outside. If that's missing, warm air from outside gets into the fridge.

Our owner-written Dometic 1350 Troubleshooting Flowchart may be helpful.

wdk450 · Jan 16, 2019

Here is a link to an E-Bay listing on universal (cut to size) door seals: https://www.ebay.com/itm/Universal-...:V7QAAOSwVFlUIaNv:sc:USPSPriority!93257!US!-1

With a general Google websearch I came up with this: https://www.ebay.com/p/RV-Refrigerator-Gasket-Kits-3103688002/1811821896?iid=140545082644&chn=ps and this: https://www.ebay.com/p/Dometic-3108700018-Gasket-Kit-Door/1123511416?iid=131736662405&chn=ps

The 2 gasgets seperately from Dyers RV here: http://www.dyersonline.com/dometic-...w2WDE5AnnajUkd0m5h92S0Z8M5NCG9ZxoC788QAvD_BwE and http://www.dyersonline.com/dometic-...A0CBrG6IiWEmkiG0584c6hFY5WGZvj7RoClJ4QAvD_BwE

Be sure to measure your doors, and check with the vendor that the seals will fit.

BTW, I found listings for many Dometic RM1350 parts on E-Bay with a search.

Domestic fridge not cooling

VLaurie1799

Member

danemayer

Well-known member

VLaurie1799

Member

JohnDar

Prolifically Gabby Member

rhodies1

Well-known member

VLaurie1799

Member

robhowden

Member

danemayer

Well-known member

wdk450

Well-known member

Similar threads