I pulled down the wire around the glass cover. . . Released on end of the wire from its holder being careful to not let the glass cover drop. Unscrewed the bulb and replaced with replacement. Easy, easy.
We broke two shelf retainer bar supports on our 30-year old Whirlpool freezer. PartSelect not only had the part we needed, the price was reasonable, the process was utterly simple and painless, and the parts arrived right on schedule just as promised. The customer experience just doesn't get any better.
I tried to just replace the cover rather than the whole unit but it was impossible - the cover would not go/stay on. I tried to remove the old unit completely but it would not unplug it was practically fused to the back of the fridge and the liner was cracking. I ended up breaking the cover and jerry rigging it over the bulb to prevent items in the fridge from being able to touch. Bad solution.
After learning the top and bottom part separate from the handle itself, all I needed to do was to take off the bottom part which was broken and replace the broken part with the new part , that was in a kit, I purchase from Whirlpool.