I had no luck, no joy with the manuals and labelling. Came across this video on how to do it! Posting this here so hopefully will help someone else out!!
http://www.youtube.com/user/abbeymeadheating
Oliver
November 2010
Automatic Answer
While you wait for answers, we may have found some information which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix baths and showers.