What does the Worcester Bosch Greenstar 8000 Lifestyle E251 fault code mean?
The E251 fault code indicates a pump installation fault, which suggests that there may be an issue with the pump’s connection or operation within the heating system. This can lead to inadequate circulation of water, affecting the boiler’s efficiency and performance.
Common Causes
- Incorrect Pump Wiring: The pump may not be wired correctly, leading to failure in operation.
- Faulty Pump: The pump itself could be defective or damaged, preventing it from functioning properly.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer to diagnose and repair the issue, as working with gas and electrical components can be dangerous. Attempting to fix it yourself may void the warranty and pose safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the E251 fault could range around £200 to £350, primarily depending on whether the pump needs to be replaced or simply reconnected. This cost reflects the price of a new pump and the labour involved in installation.