What does the Worcester Bosch Greenstar 8000 Lifestyle E266 fault code mean?
The E266 fault code indicates a pump configuration error within the Worcester Bosch Greenstar 8000 Lifestyle boiler. This typically means that the boiler’s internal system has detected an issue with the pump’s operation or configuration, which can affect heating and hot water performance.
Common Causes
- Incorrect Pump Wiring: If the pump is not wired correctly, it may not function as intended, leading to this error.
- Faulty Pump: A malfunctioning pump can cause the boiler to fail to detect proper flow, triggering the E266 fault code.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and repair this issue, as it involves electrical components and safety risks. Attempting to fix it yourself could lead to further damage or safety hazards.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the E266 fault code is approximately £150 to £250. This includes the cost of a new pump if required, as well as labour charges for a qualified engineer to diagnose and fix the issue.