potterton performer 28 leaking diverter valve

[Ian69]

hi all
Have the above problem. Put a 3ltr container below the valve last night and it was a gnats knacker from being full this morning. It's coming from the join that's just in front of the two holding screws that hold the circular piece (can't remember the name). Does this join need a rubber washer or is it metal to metal ?

 

[Agile]

There are two possible parts that could be leaking.

It all depends if its mains water or system water!

The system water part is not one of the easiest to change on that boiler.

Tony

 

[Ian69]

Hi Tony
Thanks for the reply. I assume it's mains water that's leaking as it's always cold even when the heating is on and there's no loss in pressure.