Dave for Model Number LGUS2642LF1 3 year old fridge. The freezer quit cooling. Removed panel inside the freezer back, found the evaporator was iced up at the in and out tubes over top the evaporator, but not the actual evaporator coil itself. Thawed with hair drier and made sure fan was operable. Changed Thermistor and tried again. No dice. Still had cooling in fridge side,(37 degrees) but only partial cooling in freezer side. (about 38 - 46 degrees). Next tried the switching board down under refrigerator. Again, no joy. By the way, the evaporator coil is not covered with dust or anything like that. Fan also works. Compressor does run. Any ideas?
Answer Dave, With the temperature in the refrigerator staying about normal but the freezer not, this sounds like an issue with possibly a low refrigerant charge. If just the upper part of the coils are frosted but nothing on the lower 2/3 of the coils then this would most likely be the issue. Read More... Answered by AppliancePartsPros.com | Thursday, January 8, 2015