What does the Worcester Bosch Greenstar i F41 fault code mean?
The F41 fault code indicates a malfunction with the water temperature sensor in the Worcester Bosch Greenstar i boiler. This sensor is crucial for regulating the water temperature and ensuring efficient operation.
Common Causes
- Faulty Temperature Sensor: The sensor may be defective or damaged, leading to inaccurate temperature readings.
- Wiring Issues: Damaged or loose wiring connections to the 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 to diagnose and repair the issue, as working with gas appliances can be dangerous. Attempting to fix electrical components without proper training can also pose safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing the water temperature sensor is around £150 to £200. This includes the cost of the part and labour, reflecting the complexity of the repair and the need for a qualified technician.