While you wait for answers, we may have found some information which could help you.
Success
Message
my protherm 100ec combi keeps giving the fault f1?
protherm 80e combi boiler?
No hot water?
can i repair a diverter valve for a protherm 80e?
protherm 80E keeps cutting out?
Protherm 100ec overheat trip problem?
my protherm 40-50ci boiler blows fuse?
protherm combi?
problem with protherm 80e?
how can I have just hot water from my Protherm 40 - 50 CI boiler?
Protherm 80e - Fault F1?
Protherm 100ec Boiler won't light?