Thanks for the advice, as i know nothing about boilers or Central heating systems, if i flick through the yellow pages to find a local plumber, what sort of ball part cost would this be including the call out ?
Hi, looking for some advice.
Potterton - suprima 70l
6years old, never serviced.
Doesn't shut down, and keeps firing up. The only way it seems to control it is by using the temperature control dial on the boiler (next to the reset button), if you turn this all the way down almost to where...