"andrewpreece" wrote in message
...

"Wainscotting" wrote in message
...

"Ed Sirett" wrote in message
news
On Thu, 14 Oct 2004 16:36:26 +0100, Wainscotting wrote:

When heating is on it takes an age to draw hot water. The diaphragm
is
new
so what else could be the cause? The boiler is about 15-20 years old
(VWSine).

Failed diverter valve.
The diaphragm you refer to is presumably the HW flow sensor?
I think they are sub £70 quid.

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at 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


Thanks Ed. I will have a llok in my instalation manual to try and locate
it
(and the microswitch mentioned in Andy's post).


If it's not a 242 then disregard what I said - I had a 242 and it had the
same
symptoms as your combi, but I have no idea what your combi looks like
inside, unless Vaillant use a largely common design. Ed Sirrett is a
professional and has more of an idea than I do!

Andy.


No problem - appreciate the reply