All,

I have the above boiler, it has now started to fire up (and then stop)
intermittently when all controls are off. I have put on a new
programmer, this seemed to improve it for one day only (red herring?).


I can stop it running by switching the "economy" switch to "off" or
"low" but then the boiler won't fire up when it is switched on.

Because of this it can't be left in the normal "off" state, it has to
be switched off at the mains.

Any ideas?

Thanks

Steve

Anyone?

On Mon, 02 Jan 2006 09:07:12 -0800, steve.turner wrote:

All,

I have the above boiler, it has now started to fire up (and then stop)
intermittently when all controls are off. I have put on a new
programmer, this seemed to improve it for one day only (red herring?).


I can stop it running by switching the "economy" switch to "off" or
"low" but then the boiler won't fire up when it is switched on.

Because of this it can't be left in the normal "off" state, it has to
be switched off at the mains.

Any ideas?

Thanks

When the boiler operates is it getting the demand signal?
I suspect that you may have something like a stuck microswitch on a zone
valve.

Anyway the first thing is to find out is whether the boiler is getting a
demand signal or not.


--
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

In message .com,
writes
Anyone?

Whatever, something is powering up the pcb, you need to find out what it
is

bottom line - it's not switched off when you think it is

--
geoff