Question about Sub-Zero 661/F Side by Side Refrigerator

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No longer cold

My sub zero is losing it's ability to chill and keep food cold - any ideas?

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Re: No longer cold

Make sure the Condensor is clean, there a chance that the Condensor fan motor is out or low RPM.., might have a leak @ evaporator

Posted on Apr 15, 2008

Re: No longer cold

Check the heater or the thermostat in the freezer

Posted on Dec 26, 2007

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We have a Sub Zero 249RP Refrigerator that - though the temperature is set at the lowest point - keeps freezing the food inside. Any ideas?

Um, try setting the temperature at a high point.... My subzero frig works on the "higher is warmer" idea.

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My Sub Zero 550 model seems like it is running all the time. It is too cold in the refrigerator compartment,and the condenser fan runs constantly. Adjusting down the temp control has no effect. Freezer...


There can be many reasons why your refrigerator is freezing your food. To see what could be happening and to figure out how to possibly fix your problem. Take a look at this tip which contains many of the causes and solutions to fix the problems.

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I have A Subzero 690 and the water no longer comes out as cold

the water container is located on the fresh food side. This is how your water is cooled. I would get a Temp Gauge and put it in the fresh food side to see if the temp is correct.

Aug 11, 2010 | Sub-Zero 690 Side by Side Refrigerator

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My sub zero refridgerator (freezer on bottom fridge on top) is cold on the bottom of fridge and warm on the top of the fridge. Any idea what is causing this. Items are also damp in fridge. We just vacumed...

the evaporator coil inside the freezer compartment is iced over and can't transfer cold air in thes condition,remove panel inside freezer on back side of freezer compartment and thaw it out with a hair dryer,then check the defrost heating element for continuity,if its open replace it,if its good, ,check the defrost control that powers the defrost heater

Jul 15, 2010 | Sub-Zero 611 / O Bottom Freezer...

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The freezer does not maintain its temperature periodically. It will go from 0 -70, melt everything and return to 0. started last week and happens about 24-36 hours apart. Repairman (long time sub zero...

Is the freezer side empty or nearly so? All modern frost-free units must go through a defrost cycle every 8-12 hours of accumulated running time. That figures out to every 20-40 hours in real life, and the box will be in defrost for maybe 15-30 minutes, depending on design. If the box is full of frozen food, the cycle goes unnoticed as you cannot freeze and thaw food that fast (the food actually keeps the compartment cold during the cycle). However, if the box is full of air, the temperature can change very rapidly. I suspect this to be your case. I am dumbfounded that your servicer didn't explain this to you.

Jun 28, 2009 | Sub-Zero 690 Side by Side Refrigerator

1 Answer

My sub zero model 3211 has frozen ice at the back of the refrigerator. It's cold but doesn't seem cold enough and some food has spoiled before its time. What could be the problem?

if it is a solid ball of ice, that is just growing out of the back wall, then you need a new evaporator. That is leaking gas freezing the wall.

Jun 15, 2009 | Sub-Zero 695/O Side by Side Refrigerator

1 Answer

Sub zero refrigerator freezes food

Hello. You need a new cabinet thermistor and while you are at it replace the evaporator thermistor. (The evaporator is the cooling coil behind the back wall of your fresh food section) . These sense the temperature in your frig. Both of them are behind the back wall of your fresh food compartment. You will need a wire crimper and a heat gun or lighter to heat shrink the wire connectors that come with the new ones.

Sep 20, 2008 | Sub-Zero 650 / O Bottom Freezer...

2 Answers

Sub zero

Is ice on the back cover on the left side? if it is you have a leak in the evaporator... if its under 12 yrs old call an authorized sub zero service it will be covered

Jul 30, 2008 | Sub-Zero 661/F Side by Side Refrigerator

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