On Sun, 6 Jun 2004 23:05:48 +0000 (UTC), "Hugh"
wrote:

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

Hi,

What do the heat sensors do?

cheers,
Pete.