Technical Wonky wipers

[Fab Idea]

Ah well, another day, another problem

Has anyone experienced the following with their Idea's front wipers...

• Intermittant wipe doesn't work correctly.
• Normal speed wipe works 100%.

The problem manifests itself (on intermittant) as the wipers stopping half way (or part way) across the screen and either continuing in a very jerky fashion or remaining stopped until I fiddle with the stalk. Flick wipe usually makes them return to the parked position successfully.

Elsewhere on the net (for other cars), I've read this sort of problem might be a sticking brush or relay, others suggest that the wiper motor is finished when this happens.

Thing is though, if it's the motor, why do they still work perfectly on normal speed?

Any thoughts would be much appreciated

Cheers

Simon