Andrew for Model Number RF31-FMESBSR/AA Top of evaporator section icing up every week, changed and relocated temp sensor and tested heater coils all OK. The timer on the board has to be good because no ice on the Coils only at in and out pipes at top where heater is not located. Only started doing this after six years so bad design should be the cause. Is it my door seals? Have some small tears on right door, but minimal? Thanks
Answer Andrew, if the tears on the door allow for air to get into the unit constantly, this can cause the evaporator to ice up. However, if you are getting an ice ball where the copper tubing comes out of the wall, you may have a compressor issue. If the compressor does not operate at full efficiency, it can cause the freon to not move through the unit properly causing an ice ball to form at the exit point of the wall. Another cause of an ice ball effect could also be a freon leak. You will want to check around the evaporator and compressor sections for any oil residue to indicate if there is a freon leak and if frost is forming on the copper tubing near the compressor to indicate an inefficient compressor. Read More... Answered by AppliancePartsPros.com | Tuesday, February 12, 2019