What does the Worcester Bosch Greenstar Si F96 fault code mean?
The F96 fault code indicates a faulty system reset, which typically occurs when the boiler fails to restart after a fault condition. This can prevent the boiler from operating normally, leading to heating and hot water issues.
Common Causes
- Power Supply Issues: An unstable or interrupted power supply can prevent the boiler from resetting properly.
- Control Board Malfunction: A fault in the control board may hinder the system’s ability to perform a reset, leading to the F96 error.
Can I fix it myself? (DIY)
If you are comfortable, you can try resetting the boiler by turning it off and on again after a few minutes. However, for persistent issues or if you suspect gas or electrical faults, it is strongly advised to call a Gas Safe Engineer.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F96 fault could be around £150 to £250, primarily depending on whether a new control board is needed. This cost reflects the complexity of the repair and the need for professional expertise.