My Samsung refridgerator is not cooling properly. Freezer seems to be holding steady at -4 degrees. Evaporator was iced up in Fridge, thawed it and replaced the fan and it worked great for about 3 Weeks. Noticed temp was creeping up to around 60 and found evaporator iced up again. Read the posts from this site and seems like a common problem.
What part does it sound like I need to replace? Defrost Heater,Timer,Thermostat?