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Sub-Z 550 reidge internal leak

Hi, My old sub zero 550 has an ongoing problem of. The bottom of fridge module keeps filling up with water. Door fits and seems to seal well.(after closing, takes about 10-20 seconds to pull open again) Been a bit hot and humid here lately (So. Cal). But nothing top severe. I heard this was a common problem du to the drain freesing up and that Sub-Zero had a fix, some sort of heating element. 1) What Is this part called ? ? part #? 2) Where is the opening to this drain and tube (?) located? 3) A small amount of water is also spilling out on the floor (the drain pan is positioned right and the element is warm (last I checked) 4) Any other explanations for the water problems? Thanks in advance. Peter

Posted by croak2 on

  • croak2 Aug 23, 2007

    Pretty sure if the drain is pluged it's with ice. happpen before, unpluged and before to long it happened again...learned to live with it.

    Is the defrost sensor part of the fridge or freezer? I ask because I accidently left the freezer door open alnight on a humid nght and the dischare side of the evaporator completely froze up...block of ice.

    THANX, Peter


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Better idea

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The tube behind the crisper drawers is not insulated well enough and will repeatedly freeze, leaving the water to drain on your floor. The solution is to thaw the tube and put a piece of copper the length of your tube, into the area below. The wire extending into the area below is just warm enough to keep the tube from freezing.

Posted on Jun 17, 2008



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Defrost sensor not working or drain tube blocked prior to drip tray. Regards Advisor

Posted on Aug 23, 2007

  • Anonymous Aug 23, 2007

    The defrost snsor is in the freezer,this style of unit suffers from doors being left slightly open or closed against a drawer or contents, often the problem you have does not show up for several days after the initial event, try defrosting overnight before replacing parts I see many of these usually defrost and all works ok untill the next time.



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