solenoid opened ice trap door at random

Unplug the refrigerator
Front cover of ice dispenser snaps off. Remove the 4 screws from the ice chute. Unplug the control module that opens the ice chute. Leave hanging while removing the 4 screws that hold the solenoid in place.(one is a ground wire...note location before taking apart). Unplug the two wires to the solenoid.
To install the new solenoid put the plunger in place and at the same time hook on the trip arm of the clapper door of the ice chute. Plug in the two wires to the new solenoid
Replace the 4 screws.
Plug in the Control modules and screw back in place
Plug in the refrigerator. Do a trial test.
Replace the cover