What does the Worcester Bosch Greenstar Ri F58 fault code mean?
The F58 fault code indicates a problem with flame detection in the Worcester Bosch Greenstar Ri boiler. This typically means that the boiler is unable to confirm that a flame is present when it should be, which can prevent the boiler from operating safely.
Common Causes
- Faulty Flame Sensor: The flame sensor may be dirty or malfunctioning, preventing it from detecting the flame properly.
- Electrical Issues: There could be wiring problems or a faulty connection affecting the signal from the flame sensor 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 gas and electrical components that can be dangerous if not handled properly.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the F58 fault code is around £150 to £250. This includes the cost of a new flame sensor and labour, as the sensor is a common part that may need replacement.