What does the Worcester Bosch Greenstar Si F87 fault code mean?
The F87 fault code on the Worcester Bosch Greenstar Si indicates an issue with the boiler’s software or system updates. This typically means that the boiler’s control system is not functioning correctly due to a failed update or corrupted software.
Common Causes
- Software Corruption: The control software may have become corrupted during an update process, leading to operational issues.
- Failed Update: An incomplete or failed system update can prevent the boiler from operating correctly, triggering the F87 fault code.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to address this issue, as it involves the boiler’s electronic control system. Attempting to fix software-related problems without proper expertise can lead to further complications.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F87 fault code is around £150 to £250. This cost includes diagnostics and potential software reinstallation, which requires a qualified technician’s expertise.