What does the Worcester Bosch Greenstar CDi F29 fault code mean?
The F29 fault code indicates a flame detection fault in the Worcester Bosch Greenstar CDi boiler. This means that the boiler is unable to detect the flame during operation, which can prevent it from functioning properly and may pose a safety risk.
Common Causes
- Faulty Flame Sensor: The flame sensor may be dirty or malfunctioning, preventing it from accurately detecting the flame.
- Gas Supply Issues: Insufficient gas supply or pressure can lead to the flame not being established, triggering the fault code.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for any repairs related to gas or electrical components. Attempting to fix these issues without proper training can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F29 fault could be around £150 to £250, depending on whether the flame sensor needs cleaning or replacement. This cost reflects the typical labour and parts required for such repairs.