I replaced the Ice Door Assembly, but had two problems.
1. The video was only about electronic touch controls, my frig is older and had mechanical controls. Disassembly was more of and event in discovery, but videos did help give me the general idea of how the system worked.
2. The new Assembly would not lay flat against the retainer mechanism which caused it to hang up on the discharge chute and not close leaving a big hole for invasive warm air. First I temporarily shimmed it with small screws, then found some small plastic tile shims that I cut and slipped into the space between the retainer and space above in Assembly's plastic retainer snaps. This snugged it up and I hope a little pressure and gravity will keep them in place.