"YAPH" wrote in message
...
On Sun, 04 Oct 2009 15:55:31 +0000, ARWadsworth wrote:

The only idea that I can come up with is that orange wire (which stays
at 90v when there is no power to the valve after calling for CH only)
is somehow tricking the boiler into staying running and I suspect the
boiler PCB is faulty.

Worcester 24Ri

Greenstar? Fit 0.47uF (275V AC X2 rated) capacitor across switched live.



--
John Stumbles -- http://yaph.co.uk



I fitted one today. The boiler now works correctly.

Thanks

Adam