What does the Worcester Bosch Greenstar CDi F63 fault code mean?
The F63 fault code indicates a hardware fault within the Worcester Bosch Greenstar CDi boiler. This typically suggests an issue with the internal components, which may require professional diagnosis and repair.
Common Causes
- Control Board Failure: A malfunctioning control board can lead to the F63 error, disrupting the boiler’s operation.
- Sensor Issues: Faulty sensors that provide feedback to the control system may trigger this fault code, indicating a hardware problem.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer for this issue, as it involves hardware components that require professional expertise to diagnose and repair safely.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F63 fault could range from £200 to £400, depending on whether the control board or sensors need replacement, as these parts can be expensive and require skilled labour for installation.