I have a 2+ year old Norcold N3150 3 way refrigerator in our 2018 Winnebago Class C. For the pas year or more it has had a strange door seal issue that I have never seen or read about before in any forum.The door seal is fine when the refrigerator is off, and remains fine for a couple days of operation, easily passing the dollar bill test. But after it has been running for more than a couple days, a significant portion of the outer door seal 'retracts' from the door sill, opening up an approximately 1/8" gap over a length of about 18". This, of course, causes heavy icing on the fins and poor operation of the fridge. When the fridge is turned off, after several hours or more, the gasket seems to reform itself and return to a good seal. I temporarily curtail the problem by stuffing a folded strip of paper towel behind the back edge of the gasket forcing it to meet and seal mostly against the fridge sil.Has anyone heard of such a thing, or know why this occurs? I have email pending finally with Thetford (Norcold) but don't expect much from them except for a suggestion to replace the entire door. I just want an explanation for this gasket behaviour for now.

Ed_Gee wrote:dougrainer wrote:Ed_Gee wrote:opnspaces wrote:I think Doug is saying the magnets in the refrigerator frame attract and hold the gasket when the door is closed. So wait until the seal pulls back and then open the door and see if you can stick paper clips all the way around the sealing surface. If the clips fall off Norcold might offer to replace your refrigerator. If not the only cost to you is a box of paper clips.Thanks for clarification, but IT IS NOT THE MAGNETS, The gasket becomes visibly deformed, shrinking away from the seal by over 1/8" over a 18" length. You can see how it is not as thick as need be to meet the fridge sil.Why do people Argue??????? Just TRY the paper clip test. The seal is held in place by magnets. NOT just the force of the closed door. IF the magnets are not installed correctly or missing the seal will deform like you stated. Doug (41 years as a RV tech).Doug, I am trying not to argue, but people continue to fail to comprehend what I am trying so hard to make clear. The gasket is deforming after a day or two of becoming cold. It reforms after a period of the fridge being shut off. Door seal is just fine when fridge os OFF..... Don't know why you think magnets have anything to do with pulling a rubber ( non magnetic) gasket, but in any case if they are there they are working just fine when the fridge is off, or first day or two of operation. The gasket becomes DEFORMED, after a few days of fridge being on. It remains visibly DEFORMED over the 18" portion even when the door is open. I do not know how I can make this any more clear....... .... Edited-- today I will go out and do the paper clip test.....if eating crow becomes necessary, so be it.Most of the seals have a thin metal insert. The Magnets in the box frame pull and hold the seals tight. If the seal deforms and the Magnets are not the problem, the only recourse is a new door. BUT, before I would buy a new door, I would see if making a small slit in the seal and installing some type of wood dowel to stiffen the seal to prevent shrinking back. Doug

Seal failure.When cold that section is 'contracting' due to defect during mfg.And NO.....seals are not replaceable

The normal test for your type problem is to take paper clips and see if they ALL stick to the main cabinet frame where the seal touches. You install paper clips around the complete frame to see if there is a fault in interior magnets(Clips fail to hold in place at spots). If so, take a pic and Norcold will probably replace the refer. You will have to go to a Norcold service center for verification of your test. IF this is not the case then replacing the door is next. Doug

dougrainer wrote:The normal test for your type problem is to take paper clips and see if they ALL stick to the main cabinet frame where the seal touches. You install paper clips around the complete frame to see if there is a fault in interior magnets(Clips fail to hold in place at spots). If so, take a pic and Norcold will probably replace the refer. You will have to go to a Norcold service center for verification of your test. IF this is not the case then replacing the door is next. DougPer my original post, the door IS held tight....it is the rubber gasket that is pulling back from tight fit.....but only about 18" of it. Email is pending with Norcold. Yes, I expect a door replacement is the only suggestion I'll receive from them....

I think Doug is saying the magnets in the refrigerator frame attract and hold the gasket when the door is closed. So wait until the seal pulls back and then open the door and see if you can stick paper clips all the way around the sealing surface. If the clips fall off Norcold might offer to replace your refrigerator. If not the only cost to you is a box of paper clips.

Norcold refrigerator door seal problem - strange

opnspaces
Navigator II
May 13, 2020
I think Doug is saying the magnets in the refrigerator frame attract and hold the gasket when the door is closed. So wait until the seal pulls back and then open the door and see if you can stick paper clips all the way around the sealing surface. If the clips fall off Norcold might offer to replace your refrigerator. If not the only cost to you is a box of paper clips.
Ed_Gee
Explorer II
May 13, 2020
dougrainer wrote:
The normal test for your type problem is to take paper clips and see if they ALL stick to the main cabinet frame where the seal touches. You install paper clips around the complete frame to see if there is a fault in interior magnets(Clips fail to hold in place at spots). If so, take a pic and Norcold will probably replace the refer. You will have to go to a Norcold service center for verification of your test. IF this is not the case then replacing the door is next. Doug

Per my original post, the door IS held tight....it is the rubber gasket that is pulling back from tight fit.....but only about 18" of it. Email is pending with Norcold. Yes, I expect a door replacement is the only suggestion I'll receive from them....
dougrainer
Nomad
May 12, 2020
The normal test for your type problem is to take paper clips and see if they ALL stick to the main cabinet frame where the seal touches. You install paper clips around the complete frame to see if there is a fault in interior magnets(Clips fail to hold in place at spots). If so, take a pic and Norcold will probably replace the refer. You will have to go to a Norcold service center for verification of your test. IF this is not the case then replacing the door is next. Doug
Old-Biscuit
Explorer III
May 12, 2020
Seal failure.
When cold that section is 'contracting' due to defect during mfg.

And NO.....seals are not replaceable

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Norcold refrigerator door seal problem - strange

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