In message , Jerry.
writes

"Reckless" wrote in message
...
Problem now solved. It was a capacitor inside the control unit. Quick
visit
by an electronics friend, quick examination of the PCB, re-solder a dry
joint, swap out the capacitor and the boiler is now working well again.
Certainly beats the £90+ for a replacement!


Dry joints seem to be something Potterton specialise in it seems... :~(

They're not technically dry joints, they're cracked joints due to crap
flow soldering
--
geoff