What does the Worcester Bosch Greenstar Si F63 fault code mean?
The F63 fault code indicates a faulty reset issue within the Worcester Bosch Greenstar Si boiler. This typically means that the boiler has failed to reset properly after a fault condition, which can prevent it from operating normally.
Common Causes
- Electrical Issue: A problem with the electrical supply or internal wiring can prevent the boiler from resetting.
- Control Board Fault: A malfunctioning control board may fail to process the reset command, leading to the F63 error.
Can I fix it myself? (DIY)
It is advisable to call a Gas Safe Engineer to address this issue, as it may involve electrical components that require professional handling. Attempting to fix it yourself could pose safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the F63 fault may range around £150 to £250, depending on whether the issue is with the control board or electrical components, as these parts can be costly to replace and require professional installation.