hi merv, thanks i will try that, i can get the part from preston, near to me i need to know where the diaphram membrain is situated in the boiler, if you can help, it does not show it in the manual, thanks ERIC :?:
hi merv3031 having same problem but only on central heating stops and starts when it wants, no code comes up on the screen it still shows temp , if you get any clues on the cure give us a call if you will thanks eric