What does the Worcester Bosch Greenstar Ri F28 fault code mean?
The F28 fault code indicates that there is no gas supply to the boiler, preventing it from igniting and operating correctly. This issue can arise from various factors, including problems with the gas supply or the boiler’s internal components.
Common Causes
- Gas Supply Issue: There may be a disruption in the gas supply, such as a closed valve or a gas leak.
- Faulty Gas Valve: The gas valve within the boiler may be malfunctioning, preventing gas from reaching the burner.
Can I fix it myself? (DIY)
It is crucial to call a Gas Safe Engineer for any issues related to gas supply or electrical components, as these can be dangerous. Do not attempt to fix gas-related problems yourself.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F28 fault could be around £150 to £300, depending on whether the issue is a simple gas supply problem or requires replacement of the gas valve.