Question about Sub-Zero 700TC Bottom Freezer Refrigerator

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Sub-zero 700TC leaks water out of the floor of the fridge compartment onto the floor

I notice the narrow gutter or collection tray at the back of the fridge along the floor is full of water which looks like it overflowed and then leaked out the door onto the floor. No ice or leaking into the freezer floor. Performance is fine. The entire back wall is covered with a steel plate. Does this need to be removed to access wherever this drain goes?

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Sub-Zero 550 water dripping on right side of freezer forming ice on draw

I had a similar issue that started about a year ago with my Sub-Zero 550. My freezer gasket actually tore after several times of freezing closed. I thought that a new gasket would solve it, but a second but related problem developed where I was getting alot of condensation under the left side of the unit, with the water dripping onto the floor...eventually staining the hardwood floor in front of the unit.

I traced the problem to a clogged condensation drain pipe in the refrigerator. It is a corrugated pipe that drains a trough behind the crisper drawers. My pipe was clogged with black sludge and frozen down below. The condensation in the fridge would overflow out of the trough and leak below the crisper drawers, down out through the gasket.

To resolve, I used a piece of solid thin wire folded in half and twisted with a small loop at the end to fish out as much sludge as I could. Then squirted hot water into the pipe until it totally unclogged. I believe this will solve the problem without any need for a heater underneath the unit. The 550 worked fine for 4-5 years before this happened.

Posted on Nov 29, 2008

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  • 56 Answers

SOURCE: Sub-Zero 550 water dripping on right side of freezer forming ice on draw

The drain line has been clogged. There is actually a defrost heater kit for that problem if you can get the obstruction out. Did you call factory at 800-222-7820 or a local factory authorized servicer? The drain is accessed by removing the fan shroud and evaporator cover. There are a number of of phillips head screws that hold this in place. Once you have removed the two cover you will see the drain tube on the left side of the unit. I use a hair dryer to start defrosting the tube. If you have another freezer in the house it is easier just to turn the freeezer section off for a day or so. I use nitrogen to blow the line out from the bottom once everything has defrosted. Test for water flow, then put unit back together. Call the factory at the number above for the heater kit part number and they will also give you the local authorized parts supplier. The locator web address is http://subzero.com/locator/locator.aspx?type=0&zip=Zip%20Code

Posted on Feb 22, 2009

SOURCE: Sub zero 550 (14 years old) has a small but steady leak onto floor from freezer compartment. Small amount of frost buildup on inside of door. Food is frozen and the door "appears" to seal we

Right hand side wall in the freezer - take a look- any frozen water or moisture? Need check a drain line, usually defrost heater inside the freezer wall getting bad and draining water just freezing inside of it.

Posted on May 14, 2009

  • 102 Answers

SOURCE: Sub Zero 642 side by side stainless steel leaks water from right

remove the crisper drawers and you will see a drain trough and a drain line . One or both is most likely blocked. If you pull the drain line off the trough usually you can clear it with a turkey baster filled with hot water

Posted on Aug 05, 2009

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  • 71 Answers

SOURCE: water leaks into ice maker bin

2 possible causes. 1) tehe tube is not inside of the ice maker. 2)the ice maker has acrack. better to call a tech

Posted on Apr 01, 2010

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the bottom tray/salad compartment will always get a fair amount of condensation because they are glossy plastic(bathroom paint is matt)the only "cure" is kitchen towel under the tray and remove once a week.as for the drain it is normally at the back and does collect a fair amount of "moss"in the tube,pour some clorine bleach down to clear any out.the design of the shelves directs the side/back condensation down the drain.

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Sub zero 550 (14 years old) has a small but steady leak onto floor from freezer compartment. Small amount of frost buildup on inside of door. Food is frozen and the door "appears" to seal we


Right hand side wall in the freezer - take a look- any frozen water or moisture? Need check a drain line, usually defrost heater inside the freezer wall getting bad and draining water just freezing inside of it.

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Simple fix! A small puddle of water near the fridge led me (indirectly) to this fix. Our model is a fridge only, no ice or water dispenser and nothing spilled inside. Upon closer inspection I found a narrow tray along the back wall above the crisper drawers with a drain hose leading under the unit. Apparently it's a condensate drain, a plugged one at that! I cleaned it out, yuk, and soon discovered it serves a dual purpose... as a vent to help relieve the pressure from the vacuum created immediately after closing the door. It has renewed our love affair with this fridge. Hoo Hoo!

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I fixed my leaking problem by pulling out the vegetable drawer and checking the condensation drain hose. Sure enough, it was clogged and the condensation had nowhere to go but move out toward the front of the fridge, down the left side and onto the floor. Once that drain hose was cleared (with a bendable straw), no more leak!

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Sub-Zero 550 water dripping on right side of freezer forming ice on draw


I had a similar issue that started about a year ago with my Sub-Zero 550. My freezer gasket actually tore after several times of freezing closed. I thought that a new gasket would solve it, but a second but related problem developed where I was getting alot of condensation under the left side of the unit, with the water dripping onto the floor...eventually staining the hardwood floor in front of the unit.

I traced the problem to a clogged condensation drain pipe in the refrigerator. It is a corrugated pipe that drains a trough behind the crisper drawers. My pipe was clogged with black sludge and frozen down below. The condensation in the fridge would overflow out of the trough and leak below the crisper drawers, down out through the gasket.

To resolve, I used a piece of solid thin wire folded in half and twisted with a small loop at the end to fish out as much sludge as I could. Then squirted hot water into the pipe until it totally unclogged. I believe this will solve the problem without any need for a heater underneath the unit. The 550 worked fine for 4-5 years before this happened.

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