Hi

My Worcester 24iJunior is heating water on demand fine. But when I turn on the central heating the boiler makes a series of clunking noises then the warning light flashes and switches off

The water pressure is at 2.5 bars at the moment

Is this a plumber call out or a self help

Thanks for looking
:-)

Leigh, November 2009

make sure your integral air vent is working and letting air escape

b.k., December 2009