Bosch Combi Boiler Error Codes
Choose your model or find the code in the table.
Models
Images are representative and will be replaced by manufacturer-approved photos. The code on the display is an example.
Bosch Combi Boiler code list
| Code | Fault | Models | Who fixes |
|---|---|---|---|
| C6 | Fan fault | Combi (Condens series) | Technician only |