Using a stool positioned directly beneath the inoperative fan, grasp 2 opposite sides of the plastic fan cover and pull cover down 2 to 3 inches until wire holding clasps on each side are exposed.
Squeeze the 2 wires on each clasp together until the fan cover is released and set aside fan cover.
Locate fan electrical plug and unplug the connection from the electrical outlet.
Locate the screw securing the fan unit to the ceiling. This is often found directly adjacent the electrical outlet. Some fan models will have 2 securing screws. These will be located on opposite sides of the fan base.
Use flat-head screwdriver to remove securing screw, pull fan out of the fan well and set old fan aside.
Align replacement fan in position to allow electrical plug to be inserted in electrical socket and plug into electrical outlet.
Insert fan into ceiling well and secure by inserting and tightening securing screw(s).
Test fan by turning on wall switch. If fan fails to operate, check to be certain that the plug is fully inserted into the electrical outlet. If fan still does not operate, check circuit breaker and reset if necessary.
Replace fan cover by holding cover in place with 2 wire clasps just below the slots in the fan base. Squeeze the 2 wire ends of each clasp together and insert these into the the slots on opposite sides of the fan base. Once properly inserted, the ends of the wire claps will spring into place.
Push the fan cover up allowing the wire clasps to be fully inserted into the slots on the fan base, at which point the clasps will spring open securing the cover in place.