Technical Wipers won't stop please help

[alvera90]

I have a 2003 Fiat based A class Burnster motorhome.The wipers work perfectly except they won't stop working.I haven't got a clue whether it is the switch or a relay or what.Can anybody give me a clue.

 

[gareth111278]

I expect its the auto park function in the motor gone faulty, how easy is it to get the motor off / strip it down?