What does the Baxi Duo-tec F98 fault code mean?
The F98 fault code on a Baxi Duo-tec boiler indicates a critical fault related to the central heating system. This typically signifies a serious issue that requires immediate attention to ensure safe operation.
Common Causes
- Faulty PCB: A malfunctioning printed circuit board can disrupt the boiler’s operations, leading to the F98 error.
- Sensor Issues: Problems with temperature sensors or pressure sensors can cause incorrect readings, triggering the fault code.
Can I fix it myself? (DIY)
It is highly recommended to call a Gas Safe Engineer for this fault, as it involves critical components of the heating system that require professional expertise and safety precautions.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F98 fault could be around £250 to £400, primarily due to the potential need for replacing the PCB or sensors, which are costly components.