Re: given up on samsung rs21
Hi
I have a similar problem despite changing, the cover, defrost heater, sensors. Mine is just under 5 years old.
The fridge is fine, only the blooming freezer. Once defrosted, it will work perfectly for 2 weeks and then it plays up again. I was told maybe the temperature of -20C is too low, will try at -15C and see what happens once it has been defrosted. If not will have to get another one but what make. I am in a quandry like yourself.
Rgds
Yat