Evaporator coil in refrigerator was freezing up.

I removed the panel in the back of the freezer. You have to take out all of the shelves and remove four screws. Then I took out the two screws in the heater element and swapped out the old heater element with the new one. It was really easy and now I don't have to defrost my evaporator once a week with a hair dryer. If I had known it would be so easy to get the parts I would have done it as soon as the problem started.