- select category -
Airconditioning
Cars
Chiller
Dishwashers
Dryers
Game Console
Heating
Microwave
Motorcycles
PC and Hardware
Refrigerators
Telephone
Television
Ventilation
Washers
Airconditioning
Cars
Chiller
Dishwashers
Dryers
Game Console
Heating
Microwave
Motorcycles
PC and Hardware
Refrigerators
Telephone
Television
Ventilation
Washers
Contact
About us
Login
Heating
Brand
Bosch
List all brands
Type:
Greenstar KWB28-3
List all types
Error code:
b4
List all errors
Error code: b4
Cause of error code b4
Internal data error.
Solution for error code b4
Reset boiler to factory default setting
Share this page:
© 2025 ErrorHelp.us
