How to fix Worcester Bosch Greenstar 8000 Lifestyle fault code E243

What does the Worcester Bosch Greenstar 8000 Lifestyle E243 fault code mean?

The E243 fault code indicates a pump update error, which suggests that the boiler’s control system is unable to communicate effectively with the pump. This can lead to issues with heating and hot water delivery.

Common Causes

  • Faulty Pump: The pump may be malfunctioning or have internal damage, preventing it from operating correctly.
  • Electrical Connection Issues: Loose or damaged wiring connections between the pump and the boiler control board can disrupt communication.

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 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 addressing the E243 fault code is around £150 to £250, primarily due to the potential need for a new pump or electrical repairs, which can be labour-intensive.