I have the same problem with my evaporator pan. Is like it expanded as a balloon. The other person ask you, what caused the evaporator expansion and you didn't respond the answer. It looks like this problem is a factory evaporator defect and we need to know why that happened.
Thank you
Jose for Model Number kuis15prhb
Answer Hello Jose. Over a period of time parts tend to break down due to use. The manufacture does not offer a reason the evaporators are doing this, other than normal wear on the part. Based on the information you provided, it sounds like the evaporator W10218037 is bad and will need to be replaced. Hope this helps.
My evaporator pan is bulging in the center and is no longer smooth. I assume it needs to be replaced but what do you think caused it. How difficult is it to replace? Part number AP4419601.
Robert A. for Model Number Whirlpool Icemaker GI1500XHS
Answer Hello Robert. To replace the evaporator W10218037 you will need a vacuum pump, gauges, torches, and a HVAC license to purchase the freon. This is a sealed system repair. You will need to disassemble the ice machine to do this repair. Hope this helps.