Jim B Granger , IN May 09, 2016 Appliance: Maytag Refrigerator PBF2555HEQ Maytag Refrigerator Pbf2555heq: Freezer iced up. How to replace Defrost Heater. Installed new defrost heater purchased at appliancepartpros.com. Part arrived in 2 1/2 days after ordering. Installed and fixed problem. Will definately order future parts. Thank-You JB 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes