my electric opal 10.5kw is leaking warter ?

don't know what that pratts on about but your prd has failed.
prd needs changing but you must locate why it failed.
most common reason is due to a blocked shower head, kinked pipe.

hi-spec plumbing & heating (essex)
September 2008

i think you might, switch power off and make sure all connections are tight.if so prob same error as my old shower.
my old mira sport did that then suddenly the drip turned to a waterfall, due to the pressure lock on the inlet or someting failing, so needless to say had to replace it...so maybe replace before the worse happens, showers only last a few years.

pm
September 2008