Hello, the timer is not working on my boiler. When the timer is set it starts to lag behind 'real time' within minutes. Does it just need a new battery? If so could anyone give me step by step instructions as I don't have the booklet. Really appreciate any help. Jan

Jan, November 2010

My Boiler has just started to do the same thing and as far as i know the timer panel can just be replaced as it just slots into the front

Cherry, January 2011