How to fix Worcester Bosch Greenstar 8000 Lifestyle fault code E240

What does the Worcester Bosch Greenstar 8000 Lifestyle E240 fault code mean?

The E240 fault code indicates a pump feedback error, which suggests that the boiler’s pump is either not operating correctly or is not receiving the necessary feedback from its control system. This can lead to inadequate circulation of water within the heating system, potentially causing overheating or other operational issues.

Common Causes

  • Faulty Pump: The pump may have failed or become blocked, preventing it from circulating water effectively.
  • Electrical Connection Issues: Loose or damaged wiring connections to the pump can disrupt feedback signals, leading to the error code.

Can I fix it myself? (DIY)

It is recommended 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 E240 fault code is approximately £150 to £250, primarily due to the need for a qualified engineer to diagnose and replace the pump or repair electrical connections.