Samsung rs21dcns fridge freezer Ice build up in fridge - twin cooling fan not working Fridge temp not acheivable

Model Number?

This is caused by the ice building up in at the back - the fan catches the ice and eventually will stop. With the fan malfunctioning the temperature will rise and the light then flashes. Keep searching the web, and you will find instructions how to remove the back and de-ice it. I had exactly the same problem 2 months ago. Make sure that it is fully de-iced, including the tray at the bottom. Ours has worked OK since!

samsung fridge freezer problem

samsung fridge freezer diy help

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Check to see if the fan is blocked by ice in the freezer compartment

very common and well documented issue with samsung rs21

this video explains how to repair

the ice maker wont cycle untill the temp of the ice is around 10 degrees so if the freezer is at 15 or 20 due to some other malfunction then you will see the maker full of ice but it wont harvest and make another batch. so you could have a sensor bad, control malfunction, refrigeration issue, compressor, defrost system malfunction(you mentioned ice build up)

how do we disconnect the water line to the freazer

The middle part of my refrigrator (RS21DCNS) is full of ice. i have removed ice many times. could you tell me whats the reason and solution of this?

Sounds like u need to replace fan motor

Check fan motor for continity IF none replace fan motor

press for diagnose the power freece and power cool, you will get an information about the self diagnosis. you can call samsung and will get a clue what is going on. maybe the heating is not working well.