Vauxhall Signum windscreen wipers wont park in correct place?

if they are stopping in same place each time since fuse blew then i would suspect that crank arm on motor has slipped, with ign off and wipers parked as now slacken wiper motor crank arm nut,manually put blades in correct park position and re tighten nut, should park ok now [dont try to re position by slackening wiper arms as you may find that wipers will try to clear bonnet!] KEEP HANDS CLEAR OF MOVING LINKAGE.

k
January 2010