glow worm leaky

[REDSAW]

took a look at this boiler today (gw 30cxi) with the report of a drip coming out of it. its not that bad at the moment but upon running the heating for 20 mins the cold static pressure was at 1.1bar then reached 2.4 bar which i thought a bit high!!

in the photo you can see the scale on the hydro block which i have cleaned off a bit, but i cant fathom where its comming from as it seems to be either the p-ex or spraying up..
no signs of leakage when i was there but she wants it sorting..but sort what, any ideas where its keaking from chaps???????

 

[Bhoydavid]

Had one the exact same as this last week. No leaks visible but the dhw hex was soaking. Like condensation on it.

Phoned a colleague who told me they are prone to bursting and leaking. Where the leak isn't passing more 'seeping' out. Ordered a new dhw hex and its been ok since.