What does the Baxi Platinum F94 fault code mean?
The F94 fault code on a Baxi Platinum boiler indicates a fault with the domestic hot water (DHW) temperature sensor. This issue can prevent the boiler from accurately regulating water temperature, leading to inconsistent hot water supply.
Common Causes
- Faulty Temperature Sensor: The temperature sensor may be malfunctioning or damaged, causing incorrect readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can disrupt communication between the sensor and the boiler’s control board.
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 lead to further damage or safety hazards.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing the DHW temperature sensor on a Baxi Platinum boiler is around £150. This includes the cost of the part and labour, reflecting the complexity of the repair and the need for a qualified technician.