I have a potterton 24 Performa which drips from the micro switch. It gets worse in the summer (higer air pressure?) but does it all year round. can it be fixed?

Roy, August 2009

Thanks Elanar, it was simple and worked a treat :-)

Roy, August 2009

thanks, that sounds like it might do the job. All I have to do now is get a new plunger seal :-) Thanks again.

Roy, August 2009

Is this the micro switch fitted to the front of the diaphragm chamber? (bottom left), if so you need a new plunger seal, easy to do, unscrew micro switch, turn off mains water inlet open hot tap to release pressure, (non need to drain heating side), unscrew plunger seal nut, remove old fitting and screw in new one, open mains water refit micro switch and hey presto! all done.

www.elanar.co.uk, August 2009