Question about Sub-Zero Bottom Freezer Refrigerator

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Ice keeps forming inside on the back panel of mysubzero model 550

Ice keeps forming inside the refrigerator on the back panel of my subzero model 550. Also, the drain tube stays frozen all the time.

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If the ice is on the back panel especially a block of ice in the middle left part of your panel, then you have a sealed system problem. Check to make sure that your condensor coils above the refer are clean, and if it continues to have an ice block then you have to have a technician come out an do a major repair. This is not something you can do yourself, most subzeros have a 6 to 12 year sealed system warrantee that covers either all of the repair or just parts. This is an expensive repair if it is not warranteed, but when the refers cost 8000 to 10000 new it is usually well worth it. Most often it is the result of a slowly leaking evaporator, though most inexperienced technicians replace the compressor first, so make sure you use an experienced Sub-Zero technician. Good Luck, Appliance Specialits

Posted on Dec 14, 2009

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The reason for the ice forming, is the drain tube is blocked causing water that normally drains-away to freeze.i usu pipe cleaners for this job atach a couple together and run them down the drain pipe to clear it do this every couple of months and you will have no more problems.adrian;;;

Posted on Nov 12, 2009

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1 Answer

Subzero 550 bottom feezer will not drain


This only sounds like a blockage in the condensate collection pan below each evaporator. Your model has a evaporator below each the freezer and the fresh food compartment. You will need to unplug the refrigerator ansd remove the panels covering these evaporators in order to see these condensate collection trays. Go to page 81 in the=> Sub-Zero_Built-in_500_Series_Refrigerator_Service_Manual.pdf You are going to have to remove these panels to understand what to look for when it comes to condensate collector pans with the drain in the middle bottom of each. Ask questions if you want I am here to help, Thanks Sea Breeze
I am pretty sure you are having a defrost drain blockage problem. Most defrost every eight hours and over a period of time the drain line that comes down from freezer into a cup like object top middle and back of the fresh food section. If blocked by gunk or ice you will see trails of liquid leaking down the rear wall of fresh food compartment until it reaches the crisper drawers. This is not always the same with every model as you may see frozen ice flowing down the rear wall of freezers on side by sides. Here is an example Click here=> Whirlpool Leak Photo taken by TechnicianBrian He has been around a good bit and deserves credit for his contributions. Here is another way to make this look more simple in clip below. TechnicianBrian.com And in this photo are several parts listed in photo group #1 were it is most likely running down the wall=> MagicChef CTB1921AR fresh food section. If you still have questions please ask and rate me if I was able to explain this well enough. Every refrigerator is made different so these are examples only. The key is to find if ice or just gunk has blocked you defrost drain. Unplug and then remove the rear panel in back of freezer. We need to see if the water is overflowing the condensate drain tray or if the blockage is in the turn the
drain leads down back of your refrigerator. Much more on this page=>
Leaking Refrigerators! If you run into any problems along the way of repair please let me know, Thanks, Sea
Breeze

May 13, 2013 | APW Wyott SubZero Refrigerator Freezer...

1 Answer

Why is my subzero refrigerator (model 550 o/u) leaking?


Frost build up in that area is common, it is where the compressed gas leaves the compressor on its way to the evaporator inside the unit. The putty is put there on purpose during manufacture to insulate. Things aren't helped if you have a moist warm kitchen as the air condenses at that spot and freezes. If the fridge is in reasonable condition elsewhere and you don't wish to buy another there are a few things you can do. The area with the frost can be fixed with a can of expandable foam, or foam insulation cut to size to fully cover and insulate that area. Any condensation of the back can be fixed by covering with thin polystyrene sheet which comes in a roll. cut to size and stick with contact adhesive in blobs.

Your icemaker won't make any difference to the problem. Don't forget the water supply hose should be changed every 10 years.

If you do decide to change, one benefit is cheaper running costs. Improvements are being made all the time. Having said that, SubZero are a premium make.

Mar 10, 2017 | Sub-Zero Refrigerators

1 Answer

My subzero 550 ice maker is not making ice


My subzero model 550 is not making ice after I shut the water off for a plumbing repair. Now that I turned water back on my icemaker is not working.

Jan 24, 2010 | Sub-Zero Bottom Freezer Refrigerator

1 Answer

Water is not draining down the drain tube in the main compartment of the subzero 550 refrigerator


clean drain line . force hot water down the drain as the get algi and stuff in them . if problem happens again then use a drain heater kit ( subzero ahd one for this model ) this will prevent ice over .. **** hope this will help ..

Dec 23, 2009 | Sub-Zero 650 / O Bottom Freezer...

2 Answers

SubZero 550 Water keeps collecting at the bottom of the refrigerator, behind the vegetable bins. I see it leaking from the drain pipe and the handyman has tried to clamp the pipe, but not sure why so much...


your drain may be plugged... it will need to be clean and clear... it may freeze too it you have ice in it you will need to add a drain heater to keep it clear

Sep 11, 2009 | Sub-Zero 650 / O Bottom Freezer...

1 Answer

Ice forming in the back panel of the subbzero refrigerator


The door seals are leaking. They are allowing moisture in and it is freezing.

Sep 09, 2009 | Refrigerators

1 Answer

Ice acculation under crisper drawers


No. There is, however, a drain hole in the back center that tends to get plugged. Remove the lower two drawers and see if it is plugged. It drains to a pan under the unitand behind the kickpanel

Oct 16, 2008 | Sub-Zero Refrigerators

3 Answers

Sub Zero 550 Frost Build up in Refrigerator


This means you are low on freon. You will get an ice ball on the bottom left side in the back of refer.

dartmanc

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1 Answer

SubZero 550 not cooling, ice film


1. check the comp. working touch the top of the comp. 2.if the motor comp. working touch the high side tube of the motor comp. if to hot the freon is ok. 3. check the cooling fan inside.

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