1.) Unbreakable Elevators by Boiling Oil
Prevents elevators from breaking.
2.) Elevator Dormie Fix by Dizzy2
This seems to fix the problem of unplayable dormies in University forgetting they are dormies if you install an elevator.
3.) Safe WooHoo In Elevators by Squinge
This mod prevents all elevators from breaking when sims enter or woohoo. The shop version also stops elevators from breaking on community lots as well.
Everything Sims 2 