We may have found other answers which could help you.
Click here for Boiler Descaling Combi
protherm 80E keeps cutting out?
can i repair a diverter valve for a protherm 80e?
Protherm 80e - Fault F1?
my protherm 40-50ci boiler blows fuse?
how can I have just hot water from my Protherm 40 - 50 CI boiler?
protherm combi?