What does the Worcester Bosch Greenstar Ri F38 fault code mean?
The F38 fault code indicates a malfunction with the water temperature sensor in the Worcester Bosch Greenstar Ri boiler. This issue can prevent the boiler from accurately measuring the water temperature, leading to inefficient operation or shutdown.
Common Causes
- Faulty Temperature Sensor: The sensor may be damaged or malfunctioning, causing incorrect readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can disrupt its functionality.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves electrical components and gas safety regulations. Attempting to fix it yourself could 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 typical pricing for professional repairs in the UK.