iMy car has been in garage 3 times with same problem, and within a day of fixing heater/demister stops again. I've been told it is a wiring problem. Sometimes it will come back on if I go over bump on road or if I gve a sharp thump at the side of the dash board but not always. It is 07 Corsa cloub with 34000 miles on clock.

Sadie Davenport, January 2013

I have a similar fault with my vectra, turns out the blower motor brushes are worn down

bigal238, January 2013