What does the Worcester Bosch Greenstar Si F46 fault code mean?
The F46 fault code on the Worcester Bosch Greenstar Si indicates a problem with the boiler’s display unit. This may manifest as a complete failure of the display or erratic behaviour, which can hinder the user from accessing important information about the boiler’s status.
Common Causes
- Faulty Display Screen: The display screen may be damaged or malfunctioning due to wear and tear or electrical issues.
- Loose Connections: Poor connections between the display and the main control board can lead to communication failures, resulting in the F46 error.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves electrical components that could pose safety risks if handled improperly. Attempting to fix it yourself may void any warranty.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F46 fault code is around £150 to £250. This includes the potential replacement of the display unit or repair of electrical connections, which are common issues associated with this fault.