What does the Worcester Bosch Greenstar i F56 fault code mean?
The F56 fault code indicates a problem with the system flow, which may be due to insufficient water flow through the boiler. This can lead to overheating and potential damage if not addressed promptly.
Common Causes
- Blocked Filters: Debris or sediment in the system can obstruct water flow, triggering the fault code.
- Pump Failure: A malfunctioning circulation pump may not be able to maintain adequate flow, resulting in the F56 error.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves gas and electrical components that require professional handling for safety reasons.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F56 fault could range from £150 to £300, depending on whether the issue is a simple filter clean or requires pump replacement, which can be more expensive.