Wow, another great videos!
My mother has a Whirlpool refrigerator. It has the freezing compartment on top. She is having a problem with water pooling in the back floor of the freezer and preventing draining.
Once every month or two, I have to remove the plastic bottom of the freezer and with the help of a hair dryer, loosen and remove the ice. Just like in your video. Then it's good for another month or two.
When this ice forms, it then begins to drip into the refrigerator.
I know about clearing the drain and I do that, but this ice seems to form before it has a chance to drain from the freezer. Any help would be appreciated.