What does the Worcester Bosch Greenstar CDi F26 fault code mean?
The F26 fault code indicates a problem with the temperature sensor in the Worcester Bosch Greenstar CDi boiler. This sensor is crucial for monitoring the temperature of the water and ensuring the system operates efficiently.
Common Causes
- Faulty Temperature Sensor: The sensor may have failed due to wear and tear or manufacturing defects, leading to inaccurate temperature readings.
- Wiring Issues: Damaged or loose wiring connections to the temperature sensor can disrupt its functionality, causing the fault code to appear.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves electrical components and safety risks. Attempting to fix it yourself could void warranties or lead to further complications.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing a faulty temperature sensor in a Worcester Bosch Greenstar CDi boiler is around £150 to £200. This includes the cost of the part and labour, reflecting the typical pricing for professional service in the UK.