How to fix Worcester Bosch Greenstar i fault code F96

What does the Worcester Bosch Greenstar i F96 fault code mean?

The F96 fault code indicates a problem with the system resources of the boiler, which may relate to issues such as low water pressure or a malfunctioning component. This fault can prevent the boiler from operating efficiently and may require immediate attention.

Common Causes

  • Low Water Pressure: Insufficient water pressure can trigger the F96 fault code, preventing the boiler from functioning properly.
  • Faulty Components: Malfunctioning sensors or internal components may lead to incorrect readings, causing the system to report a fault.

Can I fix it myself? (DIY)

If you suspect low water pressure, you can check the pressure gauge and top up the system if necessary. However, for any electrical or gas-related issues, it is crucial to call a Gas Safe Engineer to ensure safety and compliance with regulations.

Estimated Repair Cost (2026 UK Prices)

The estimated repair cost for resolving the F96 fault code is around £150 to £250, depending on whether it involves topping up the system or replacing faulty components such as sensors or valves.