Philbert C Fremont , CA January 06, 2015 Ice had formed all around the evaporator fan in order to pull the unit out to defrost i had to break the foam around the cover which meant having to replace the entire cover/evaporator assembly I used a steamer to melt the ice and then put this replacement cover evaporator on. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours