My model MFF2557KES refrigerator not getting cold and freezer operating fine.

Check that the return air duct near the bottom of the fridge is not blocked. The air may be going into the fridge but cant get out. It has to complete a cycle where it gets drawn back into the freezer to get cold and then gets blown back into the food compartment. The baffle controls how much or how little cold air goes in. You may have to take the rear panel off the inside of the freezer, there may an ice buildup in there.

might need freon or the compressor going out cheaper to get a new or used one

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

Refrigeratoris Too Cold and Freezing Food
heatman101

You have a defrost drain that is frozen. You can thaw with hairdryer . I hope this helps.

Hello,
If when first hooked up the water line if you used a peircing type valve that clamps onto the cold water pipe it clamps on,tighten the screws equally on both sides till its tight around the pipe.Turn that handle in to peirce the pipe in a clockwise motion till it stops,it will peirce the pipe but be in the closed position, so open it in counterclockwise direction till it stops

Gene

NOTE: This
is a multi-solution answer since I don't have all the tech from your question to pinpoint your problem
But the solution is in here generically, if you read and study the solutions very,very carefully.
First I would check cold control. Thats where you turn it off, if your temp is not warm. it can
be defective and not shutting off. If your temp is warm proceed with the following.
I would check the fan in the freezer. Listen to see if it is running
It moves air to the ref from the freezer
Then check to see if freezer control is turned WARMER, which makes the Ref. colder
Also this might be a common Defrost problem, Ice
is not being melted by the defrost system.The fan can't blow through the coils into the fridge.
Take out back panel of freezer to check for ice buildup. The coils should be clean.
There are three components to a defrost system- a heater,heater thermostat, and a timer unless you have a defrost electronic card.
Its best handled by a Technician but you could possibly do it by taking your model number to the nearest appliance parts store and asking for the parts. They are mostly located in freezer ,behind back panel on freezer coils.except the card which is usually located in ref The parts store will have info
Also check fan undernearh Ref in the rear
Clean condenser coils underneath
Check cold control (thats where you turn it colder)
.I'm including my article on Refrigerator Repair for your help and convenience.;
Please click or copy and paste into browser for Article
http://www.fixya.com/support/r5816737-fix_refrigerator_psychologically
Thanks for using fixya
Leo Ponder
imufo2
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Hi,

Check out these tips...they can help you figure out what is going wrong withyour refrigerator and why it is not cooling

Refrigerator not Cooling or Fridge not Cooling

How to Defrost Refrigerator Defrost Timer Problem

Water Running in refrigerator from Freezer

Refrigerator or Freezer not Cooling or Getting Cold
heatman101

'';;'

Hi,

Check out these tips...they can help you figure out what is going wrong withyour refrigerator and why it is not cooling

Refrigerator not Cooling or Fridge not Cooling

How to Defrost Refrigerator Defrost Timer Problem

Water Running in refrigerator from Freezer

Refrigerator or Freezer not Cooling or Getting Cold
heatman101

Since your unit will have only one compressor, the cooled air must be circulated via a fan that distributes the air between the two compartments and this has probably died. This allows the cooled air to simply fall downward. When you can hear the compressor running, hold your fingers in front of the vents in the refrigerator compartment to see if you can feel any air stream.

Hi thanks for the question. check the freezer ,is the fan running. check the back freezer wall for frost build up. pull fridge from wall. remove back panel. clean all coils . thanks the appliance doc