Hello how are you, as you commented all the companions (greetings) this problem is very common in all whirlpool but if after doing what you are told and if you tried the damper if it works, sensors well drain well weather stripping well fuse gives continuity I tell you a case that occurred to me these days with a wrm48 after checking everything and perform the test without checking all the components tested and in their perfect parameters remove the plate to make it control and it was perfect, take the determination of placing the direct resistance better without the hot melt and leave the equipment in observation the result was optimal the refrigerator is working perfect, after this replace the hot melt so as not to leave it unprotected and the problem is over, it seems that the hot melt before arriving at ls 72 ° that is the protection and the refrigerator did not end the defrosting as corresponded the remaining bottom of the evaporator always blocked when it tried all the components were well because the hot melt continued but opened before and I no longer knew that more I was giving up I told you to take into account that problem, greetings.