What does the Worcester Bosch Greenstar Si F64 fault code mean?
The F64 fault code on the Worcester Bosch Greenstar Si indicates a maintenance issue, typically related to the boiler’s internal components or system performance. This code suggests that the boiler requires attention to ensure optimal operation and safety.
Common Causes
- Inadequate servicing: Regular maintenance may have been neglected, leading to performance issues.
- Blocked filters or flues: Obstructions can hinder airflow and efficiency, triggering the fault code.
Can I fix it myself? (DIY)
It is highly recommended to call a Gas Safe Engineer for any issues related to gas or electrical components. Attempting to fix these problems without proper training can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the F64 fault could be around £150 to £250, depending on the specific maintenance required and any parts that may need replacement. This estimate reflects the cost of professional servicing and potential component repairs.