What does the Glow-worm Flexicom F57 fault code mean?
The F57 fault code on a Glow-worm Flexicom boiler indicates a problem with the hot water sensor, which is responsible for monitoring the temperature of the water. This fault can lead to issues with hot water delivery and may require immediate attention to ensure safe and efficient operation.
Common Causes
- Faulty Hot Water Sensor: The sensor may be malfunctioning or damaged, leading to incorrect temperature readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can disrupt its functionality, causing the fault code to appear.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves electrical components and gas safety regulations. Attempting to fix it yourself could pose safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing a faulty hot water sensor on a Glow-worm Flexicom boiler is around £150 to £200. This includes the cost of the part and labour, reflecting the complexity of the repair and the need for a qualified technician.