What does the Worcester Bosch Greenstar CDi F76 fault code mean?
The F76 fault code indicates a problem with the boiler’s energy consumption, which may be related to issues with the gas supply or internal components affecting efficiency. This fault can lead to reduced heating performance and may require immediate attention to prevent further complications.
Common Causes
- Gas Supply Issues: Insufficient gas supply or pressure can cause the boiler to operate inefficiently, triggering the F76 fault code.
- Faulty Components: Malfunctioning sensors or internal components, such as the gas valve or circuit board, can disrupt energy consumption readings.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer for any gas or electrical issues related to this fault. Attempting to fix these problems without proper training can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F76 fault could range from £150 to £300, depending on whether it involves replacing a faulty gas valve or sensor. This estimate reflects the cost of parts and labour for a qualified engineer.