DIY Doctor UK DIY Forums

Posted: **Thu Apr 05, 2007 9:08 pm**

my worcester highflow c/h boiler works on central heating but the minute you switch on hot water the whole thing trips and the pilot goes out, help[/b]

Posted: **Thu Apr 12, 2007 11:13 pm**

Sounds like diverter valve trouble. Could be blocked up with sludge or motor has packed up.