Newbie with a wiper fuse problem!!!

[Scutch]

Hi People, can someone help me please?
I'm new to the VW scene and don't know much about them yet!
For some reason my wipers have just decided to start to blow a fuse!!! If they're in the off position it blows as soon as I turn the ignition on but if they're are in the on position they work, but as soon as I turn it off it blows the fuse again?!? very puzzled... seems like its earthing out but i don't know where to look

 

[Trikky2]

Has any wiring been changed/messed with?

The wiper motor uses and earth brake to stop eg. it earths itself when it reaches the park position after you turn them off. This is needed to prevent "run on".

If the wiring to the wiper switch or motor is incorrect then the motor may not be isolated from the power when the switch is in the off position, in which case it will blow the fuse.