What does the Vaillant ecoTEC exclusive F96 fault code mean?
The F96 fault code indicates that the boiler has detected a failure related to safety standards, which may involve issues with the flue system or combustion safety. This fault prevents the boiler from operating to ensure user safety.
Common Causes
- Flue Blockage: A blockage in the flue can prevent proper ventilation, leading to safety concerns.
- Faulty Sensors: Malfunctioning safety sensors may incorrectly signal that safety standards are not being met.
Can I fix it myself? (DIY)
It is highly recommended to call a Gas Safe Engineer for this issue, as it involves safety standards and potential gas or electrical problems that require professional expertise.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F96 fault could range from £150 to £300, depending on whether a flue blockage needs clearing or if sensors need replacement. This cost reflects the complexity of ensuring safety compliance.