Ben asked ... Toyota Yaris French or Japanese?    |    Andy asked ... How can I mend my MacAlistair 450w hedge trimmer?    |    Felix asked ... Hitachi vt-m70em?    |    Katie Bond asked ... Fixing auto threader on Baby Lock Enlighten Overlocker?    |    Chris. asked ... Miele W800 novotronic washing machine?    |    Click here to ask your question

How to fix my old 350 Worcester combo boiler?

Hi my boiler keeps locking out with the central heating on. It seems fine when it's heating hot water. I noticed lastnight that the radiators got excessively hot and the system pressure peaked at just over 3bar shortly before it locked out. (usually around 2bar with central heating on whenever I've looked before).
If I use the reset on top of the boiler it works fine again for a day or so. Any ideas or known common faults? Any info will be greatly recieved.
Dom, January 2012
link Click here to see other fixes for Worcester.