What does the Worcester Bosch Greenstar CDi F58 fault code mean?
The F58 fault code on the Worcester Bosch Greenstar CDi indicates a problem with the air intake system, which is essential for proper combustion. This issue can lead to reduced efficiency and potential safety hazards if not addressed promptly.
Common Causes
- Blocked Air Intake: Debris or obstructions in the air intake can restrict airflow, triggering the fault code.
- Faulty Air Pressure Switch: A malfunctioning air pressure switch may fail to detect proper airflow, causing the boiler to shut down for safety.
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 require professional expertise. Attempting DIY repairs may pose safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F58 fault could range from £150 to £300, depending on whether the issue is a simple blockage or requires replacement of the air pressure switch.