Leaky Potterton diverter

[Creakyhouse]

Hi, I've just noticed my diverter valve is leaking where the front part meets the rear part. The heating hasn't been on, only been using boiler for hot water lately

The leak can be anything from a few drips to a few ml of water. Doesn't seem to leak all the time though.

I replaced the diverter valve diaphragm last year. Can the front be removed and a seal replaced or something? Any advice appreciated...

Please see image just to show where the water is leaking from. Boiler is a Potterton Performa 30HE and appears to be operating OK apart from the leak.

 

[WC1]

It's not a job many diy would tackle and some would say you should be gas safe to do it.
Fairly simple for a gsr.
It's a lot more complex than doing the front of the diverter