What does the Baxi Duo-tec F96 fault code mean?
The F96 fault code on a Baxi Duo-tec boiler indicates a central heating emergency fault, which typically means there is a significant issue preventing the boiler from operating correctly. This fault may arise from various underlying problems that require immediate attention.
Common Causes
- Low Water Pressure: Insufficient water pressure can trigger the F96 fault, as the boiler needs adequate pressure to function properly.
- Faulty Pump: A malfunctioning circulation pump may prevent hot water from circulating through the heating system, leading to this error code.
Can I fix it myself? (DIY)
If you are comfortable, you can check the boiler’s pressure gauge and attempt to repressurise the system if it is below 1 bar. However, if the issue persists or involves gas or electrical components, it is crucial to call a Gas Safe Engineer for safety reasons.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the F96 fault could range from £150 to £300, depending on whether the issue is simply low water pressure or if a component like the pump needs replacement, which can be more expensive.