I have an LG that started off not freezing well about a month ago. It stopped making ice then eventually thawed out. First, I checked the condenser coils and they were good so I brushed and vacuumed them just in case. Replaced the control board. Went thru the reset button clicks and compressor, condenser fan and evap fan all came on. It ran ok for the refrigerator cooling but the freezer never got as cold as the display showed and no ice. So, I replaced the freezer temp sensor. Went thru the reset tests and everything came on again like before. Now, the refrigerator is staying around 40 when set to 33 and freezer is about 20 when set to -3. Please advise