Lower hinge (door closer) was worn out, so door wouldn't close on its own.

Simple. Removed all food and shelves from the door. Removed the top hinge, which allowed me to lift the door off the door closer. I layed it on the kitchen table on its front with the handle over the edge so it wouldn't cause a problem. Since I had it all apart I replaced both the top and bottom pieces of the door closer, and put a touch of grease on it. I then reassembled it in the reverse order. - The fountain spring and actuator pad were for a different problem with the fountain. It wouldn't shut off all the time because the actuator pad was getting stiff from time and use. I removed A/C power and turned off the water, then removed the front screws from the fountain cover. I then had easy access to the actuator pad, which only took a few minutes to replace. Careful when you pull the cover off, there are wires connected to it. Just don't forget to pull the plug out off the wall so you don't get killed!