What does the Glow-worm Energy F49 fault code mean?
The F49 fault code on the Glow-worm Energy boiler indicates a flue gas temperature fault, which suggests that the boiler is unable to detect the correct temperature of the flue gases. This can lead to inefficient operation and potential safety hazards if not addressed promptly.
Common Causes
- Blocked Flue: A blockage in the flue system can prevent proper gas flow, causing incorrect temperature readings.
- Faulty Temperature Sensor: A malfunctioning temperature sensor may give inaccurate readings, triggering the fault code.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and repair this issue, as it involves gas and electrical components that can be dangerous if handled improperly.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F49 fault could range from £150 to £300, depending on whether the issue is a blocked flue or requires replacement of the temperature sensor.