What does the Worcester Bosch Greenstar i F79 fault code mean?
The F79 fault code on the Worcester Bosch Greenstar i indicates a communication issue between the boiler and the user interface. This can prevent the boiler from operating correctly and may require troubleshooting to resolve.
Common Causes
- Faulty User Interface: The user interface may be malfunctioning or damaged, leading to communication errors.
- Wiring Issues: Damaged or loose wiring connections between the boiler and the user interface can cause the F79 fault code to appear.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves electrical components and potential safety risks. Attempting to fix it yourself could lead to further complications.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F79 fault code is around £150 to £250. This includes diagnostics and potential replacement of the user interface or wiring, depending on the specific issue identified by the engineer.