timer not working on vaillant boiler?
have a vaillant turbomax vuw 242e, approx 8 yrs old. I can set the clock and times for central heating to come on and off for the week but when i switch it to "RUN" the time itself runs too quickly eg, 60 mins takes just 60 seconds! Any advise greatly recieved.
rob.h, November 2008
