Thank you ,I had a plumber round today who said he knows another plumber who knows these boilers well,he is going to get back to me when spoken to him .he thinks without speaking to other plumber it may be something simple and cheap like the stats or something and prob wont require new boiler but is going to consult other plumber to confirm .I will ghet back to you when I hear more.
karlabobby, August 2010