On Thu, 05 Jan 2006 06:04:38 -0800, dave wrote:

Yes that was my feeling, everything seems to point to the diverter
valve. The diaphram is moving but maybe the vale at the bottom is
sticking, I'll take it out and have a look at it.

Could well be stuck due to black bits.

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html