i have a problem with my window it worked fine and opened it went to close it and it did nothing. now and again it will open and close fine other times it will open and won't close. when working the switch its clicking what can it be.

 

often the armature of window motor develops a flat spot from always stopping in same spot...... hold down switch while firmly closing door and see if it starts..that has often worked for me... otherwise regulator if master switch will also not work...