Hi I was wondering if anyone couldvoffer advice: Last year my w reg for ka's blowers stopped working. It gets hot but theres no blow on any of the 4 settings. I paid and got this fixed. After much investigation, the whole switch unit was replaced. They then stopped working again in september (same fault) but a month later, jst randomly came back on whilst driving. They have now gone again exactly the same fault as before (were working when I parked the car at work after work tried to clear windscreen and no air being blown) . Any suggestions on what I can check or has anyone had similar experiences? Thank you.