What does the Baxi Platinum F59 fault code mean?
The F59 fault code on a Baxi Platinum boiler indicates a flame rectification fault, which means the boiler is unable to detect the flame during operation. This can prevent the boiler from functioning properly and may lead to a shutdown for safety reasons.
Common Causes
- Faulty Flame Sensor: The flame sensor may be dirty or malfunctioning, preventing it from accurately detecting the flame.
- Electrical Issues: Problems with wiring or connections related to the flame detection system can lead to a failure in flame rectification.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer for any gas or electrical issues, including those related to the flame sensor. Attempting to fix these problems without proper training can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing an F59 fault could be around £150 to £250, primarily due to the potential need for a new flame sensor and labour costs associated with a qualified engineer’s visit.