On Sun, 17 Oct 2004 09:25:19 +0000, DaveŁ wrote:
A couple of times recently, the hot taps have been running cold, and
the combi boiler doesn't fire up when a hot tap is turned on in the
house.
I've also noticed a lot of air pockets blasting and sputtering from
the hot taps when thy are first turned on. The unheated water from the
the taps seems to be at a pressure high enough that would normally
cause the boiler to fire up - but the water is coming out ice cold.
The central heating is working fine.
The boiler is a Britony Combi 80 made by Chaffoteaux et Maury.
Anyone tell me what the problem is?
Many thanks,
For sure this is the HW flow sensor. I'm 99% sure this is implemented using a
differential pressure diaphragm on this model. The diaphragm has split or
the pin it move has jammed. Just possibly the microswitch it turns on has
completely failed.
--
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