My Potterton Performa HE condensing combi is leaking from the mating piece between the diverter valve and diaphragm. There is a steady drip from the lowest grub screw hole which at the moment I have stuffed a drinking straw into to channel the water away. I have taken the diaphragm off and the...
Just found one of the plastic IDC tools at B&Q for 98p
Comes with wiring/connection instructions but says not suitable for 'NTE5 line box' (whatever that means).
