Hi thanks to all who helped me with my no hot water problem on my glow worm compact 100e yesterday ..After your tips it cost £1.40p for a diaphram all fixed now..Apposed to the £2300 a plumber quoted me for a new boiler on Thursday as he could not fix it... Many thanks what a great site.ps I also found a site that has allot of free boiler manuals on it ..www.glow-wormorders.co.uk..