How to change or clean the PCB on potterton suprima 50?

common fault with potterton suprima now updated pcb cheapest probably get british gas to fix they do a on demand fix that includes parts and labour pcb costs approx £150

be safe
May 2010

If a registered Gas-Safe engineer can do it - anybody can...

Unless covered in conductive material - like carbon dust or moisture for instance - cleaning will achieve nothing.

You do not qualify or explain "on the blink". Go here nevertheless...

http://kaijaks.co.uk/blog/nick/2008/02/10/dodgy-old-boiler


Intermittent connection faults on electronic circuits can sometimes be traced by tapping gently with a wooden spoon.

Boiler PCBs are subject to failing Electrolytic Capacitors - they tend to fail over time and particularly in a warm environment - and boilers are warm environments.

Good luck...

Peccavi
May 2010