Sub-Zero 550. Freezer section works perfectly, the fridge section is stuck at 55 degrees dial up to 10 and won't get colder. I replaced the evaporator fan motor but no luck. What else can it be?

Douglas Henry

• 175 Answers
• Posted on Sep 07, 2007

SOURCE: Sub-Zero 550 with Bottom Freezer

The life expectancy of these is as long as you want to fix em. I stll work on plenty of them builty before 1980. You may have to pay $900 for a bad compressor, but the fridge replacment cost is around $600, so it's up to you. take the back wall off behind the shelves an look at the coils. If the coils are frosty on only part of the coils (less than 2/3 I would say) Then you have a freon leak. likely from the evaporater (this will need to be cut out and soldered in with aq torch) If you have all frost top to bottom, defrost it, turn down the setting, and check that your door seals well and the door doesnt bounce open when you swing it shut. If there is no frost at all, feel the frame around the door opening. If its warm, take of the upper grille and then the upper sheild on the left side (2 screws). Use a flashlight to shine trough the condenser (thing on the right, looks luike a radiator) if you shine a light throuhgh towards the fan, but cannot see the light come through on the fan side, you need to vacuum off the condenser and try again. If light still does not get through, go to your local auto parts store and buy 2 cans of NON FLAMMABLE brake cleaner. Unplug the unit and hose the condenser down with the stuff untuill you can see light through it from the flashlight. this will be messy, so have a spare rol of paper towels handy. The fumes will be bad too so open a window and put a fan in if you can. If the frame of the fridge is not warm, and there is no frst, discannect the cold controll and use a piece of wire to connect the two wires together after you disconnect them from the cold control. Do not connect the green wire, and be carefull as ther will be 110volts in one of those 2 wires if you didnt unplug the fridge. let the thing run with the control bypassed for 15 minute or so and watch the coils to see if they frost. If they frost all the way, top to bottom, replace the cold control (one for the fridge on the right, by the way)Hope you can get the info you need out of this. Good Luck!

SOURCE: Maytag MSD2456GEB fridge section warm

Please remember I am attempting to diagnose your appliance without being there and with very little information.
Sorry but if your freezer is 10 degrees, it is running warm. Freezer is designed to run between -10 and 0 degrees. Reset controls, place them in the middle of the scales. The controls can be confusing. The control that turns the unit on and off is your freezer thermostat and the other is the damper that controls the air flow from the freezer into the fresh food section. What I would think is wrong with your unit is one of two things.

1. You have a defrost problem.
2. Your inside fan is not running.

SOURCE: fridge does not stay cold but the freezer works

Hi,
There are a few reasons why the refrigerator part will not cool...here are a couple of tips that will help you to figure out why the refrigerantor is not cooling...

Refrigerator not Cooling or Fridge not Cooling
http://www.fixya.com/support/r3662945-refrigerator_not_cooling_or_fridge_not

How to Defrost Refrigerator Defrost Timer Problem
http://www.fixya.com/support/r3771673-defrost_refrigerator_defrost_timer

heatman101

SOURCE: My Sub Zero 550 model

Hi,

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.

Refrigerator is Too Cold and Freezing Food

heatman101

Robert Moller

• 1524 Answers
• Posted on Jun 08, 2011

SOURCE: My sub-zero 642 will not

The Sub Zero 642 uses independent refrigeration meaning the freezer and refrigerator each has their own system. Best to have an "Authorized Factory Service Company" check it out.