What does the Worcester Bosch Greenstar 8000 Lifestyle E291 fault code mean?
The E291 fault code indicates a pump service fault, which suggests that the heating pump is not functioning correctly. 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 circulating water effectively.
- Electrical Fault: Issues with the pump’s electrical connections or the control board may prevent the pump from receiving power.
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 may void warranties or lead to further damage.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the E291 fault could be around £150 to £250, depending on whether the pump needs cleaning, repair, or replacement. This estimate includes labour and parts, as pump replacements can be costly.