fridge door would not stay closed,

took off the top hinge (one screw on the cover, and two bolts holding the hinge), lifted the door off the bottom hinge, saw that the riser cam had disintegrated. ordered the cam and the shim (since it looked like the shim was also going bad).
when the parts arrived, I took the top hinge off again, took the bracket holding the shim and cam off the bottom of the door (two bolts), removed the broken riser cam. Attached the shims and the cam to the bottom of the door with the bracket, replaced the door on the bottom hinge, replaced the top hinge, and the door closed correctly.

after three days, there was no condensation in the fridge, we decided that the gaskets did not need to be replaced.

qed.