Product review (5 stars): Fix your Samsung RS265TDRS Side by side refrigerator not cooling
If your samsung side by side refrigerator is not cooling let it defrost for several days then replace the following parts:
SAMSUNG DA31-00146E MOTOR FAN-BLDC DREP5 OEM
Samsung DA47-00322J Heater-Sheath Metal Ref
Samsung OEM Original Part: DA32-00029Q Refrigerator Temperature Sensor
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Its usually caused by one of these or multiple failures.
Replacement takes less than 30 minutes with a phillips screwdriver and a pair of needle nose pliers.
All parts are located in the refrigerator enclosure behind the lower panel. Pull all the shelves out and remove the lighting covers to expose screws. When you replace the parts inside the fridge make sure you remove the panel behind the fridge and vacuum off any build up on the coils (you will know when you see them). Also, there are 2 white rubber drain hoses. Make sure they are free of debris.
Thats it!
A beginner can do the job in less than an hour.