What does the Worcester Bosch Greenstar 8000 Lifestyle E221 fault code mean?
The E221 fault code indicates a pump monitoring fault, which suggests that the boiler’s pump is either not functioning correctly or is not being detected by the control system. This can lead to inadequate circulation of water, potentially causing overheating or other operational issues.
Common Causes
- Faulty Pump: The pump may have failed due to wear and tear, resulting in insufficient water circulation.
- Electrical Issue: There could be a problem with the wiring or connections to the pump, preventing it from receiving power or sending feedback to the control board.
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 addressing the E221 fault could be around £250 to £350, primarily due to the potential need for a new pump and associated labour costs. This estimate reflects the complexity of the repair and the quality of parts used.