worcester 240 boiler

[joecardiff]

i have a issue with the boiler being very loud and after some time i

cuts out the ignition goes out and the only way to get it to work fo central heating or hot water is to press reset button. please can yo hel

-- joecardiff

[Fentoozler]

The boiler is overheating due to the water not being drawn away from the heat exchanger...

1. Most likely a stuck pump in the boiler itself - see if it will free off, otherwise replace with a 6m head pump;
2. Boiler airlocked. Have you drained the boiuler recently? Make sure the auto-air-vent is open & working;
3. Blocked primary heat exchanger - require flushing out or replacing.

Angus