always worth trying heat sensors first - only cost £6 - 10 each - simple to
fit, and because they get furred up/and/or fail, can cause havoc.
I'm talking Worcester boilers here - but maybe just as simple on other
brands - a call to tech. helpline is often worthwhile.
Hugh
--
----------------------------------------------------------------------------
---------
"Pete C" wrote in message
...
On Sun, 6 Jun 2004 14:08:32 +0100, "stuart noble"
wrote:

We have a leBlanc combi boiler which has suddenly started delivering warm
rather than hot water. The water temperature control knob still increases
the flame height on the main burner but the maximum level seems lower
than
previously. Looks like the same applies when the heating is on.
Any suggestions welcome. It has operated more or less faultlessly for 18
years so I am reluctant to replace it if it isn't necessary.

Hi,

Sounds like the gas valve on the burner is sticking.

cheers,
Pete.