We may have found other answers which could help you.
Click here for Hot Bosch TimeBosch 30CDi how do I restore the pressure. ?
no blue light from the bosch boiler?
Bosch 24i Combi-boiler?
bosch zwb7-32 rd532 condensing boiler?
no hot water from worseter bosch greenstar combi boiler?
worceter bosch combi boiler?