Question about Sub-Zero 690 Side by Side Refrigerator

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Back wall of my sub zero refrigerator ices up

...even though I've turned the temp to the lowest setting. The rest of the refrigerator operates fine.

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This is an issue that is most common in humid places. It is a good idea to run the settings at the manufactures suggested setting. this gives you the most energy efficiency. The icing problem is due to excess moisture in the atmosphere that enters the refrigerator when it is opened or the gasket is worn. You will need to manually defrost the unit by un-plugging it for about two hours about once every two months. this in conjunction with its own defrost will take care of the additional ice.
If it re-ices very fast like in just a few days or a week then it may not be running its own defrost and you will need to have it serviced. The technician will most likely replace the defrost timer or ( clix-on bulb )

Posted on Jun 15, 2009

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