What does the Worcester Bosch Greenstar 8000 Lifestyle E256 fault code mean?
The E256 fault code indicates a pump diagnostics fault, suggesting that the boiler’s pump is not operating correctly or is experiencing a malfunction. This can lead to inadequate circulation of water within the heating system, potentially causing overheating or system failure.
Common Causes
- Blocked Pump: Debris or scale buildup can obstruct the pump, preventing it from functioning properly.
- Electrical Fault: Issues with the pump’s electrical connections or control board can lead to a failure in pump operation.
Can I fix it myself? (DIY)
It is advisable to call a Gas Safe Engineer for this issue, as it involves electrical components and potential gas 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 an E256 fault could range from £150 to £300, depending on whether the pump needs cleaning, repair, or replacement. Replacement parts for the pump can be expensive, and professional labour costs will also contribute to the overall expense.