Hey Barry. Thanks for your instructions. I got the panel open in the freezer and I found that there is a solid sheet of ice just under the evaporator coils. I assume that the defrost drain is under that sheet of ice. I've never defrosted the refrigerator in the 8 years that I've owned it. Is that the problem?
A new development. The clog finally released but it's draining into the refrigerator. The water is dripping out of, what looks like, drain holes in a piece that juts down from the ceiling of the fridge, right behind the light. Can I somehow remove that assembly and get to the clog?