Replaced the defrost timer on my GE refrigerator, easy to do. I recommend that you check out the freezer coils. They were packed with ice build up. I defrosted them with a hair dryer, you will have to soak up the water because it will probably be more than the evaporator pan can handle. It is working fine now. Very happy with delivery of part, next day. Time to replace part 10 minutes or less, extra time was spent defrosting evaporator coils.