What does the Worcester Bosch Greenstar i F88 fault code mean?
The F88 fault code on the Worcester Bosch Greenstar i indicates a system recall issue, typically related to a fault in the boiler’s internal components or software. This error suggests that the boiler has detected a malfunction that requires attention to ensure safe operation.
Common Causes
- Software Glitch: A temporary fault in the boiler’s software may trigger the F88 code, often resolved by a reset.
- Internal Component Failure: A malfunctioning part, such as the control board or sensors, may cause the system to recall, necessitating professional inspection.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this fault, as it may involve complex internal issues that require professional expertise. Attempting to fix it yourself could pose safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F88 fault could range from £150 to £300, depending on whether a software update or component replacement is needed. This estimate reflects the typical costs for diagnostic checks and parts replacement in the UK.