What does the Worcester Bosch Greenstar Si F95 fault code mean?
The F95 fault code indicates that the boiler is in a faulty system service mode, which can prevent it from operating correctly. This mode is typically triggered by an internal fault or incorrect settings within the boiler’s control system.
Common Causes
- Incorrect Configuration: The boiler may have been incorrectly set up or programmed, leading to the activation of service mode.
- Internal Fault: There may be a malfunction within the boiler’s electronic control system or sensors that is causing it to enter service mode.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and resolve the issue, as it may involve complex electrical components that require professional expertise.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F95 fault code is around £150 to £250. This includes diagnostic time and potential replacement of faulty components, such as the control board or sensors.