What does the Glow-worm Easicom E450 fault code mean?
The E450 fault code indicates an open circuit in the flue gas temperature sensor of the Glow-worm Easicom boiler. This issue can prevent the boiler from operating safely, as it cannot accurately monitor the temperature of the flue gases.
Common Causes
- Faulty Flue Gas Temperature Sensor: The sensor may be damaged or malfunctioning, leading to an open circuit.
- Wiring Issues: Damaged or loose wiring connections to the sensor can cause an open circuit, preventing proper communication with the boiler’s control board.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves gas and electrical components that can be dangerous to handle without proper training.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for this fault is around £150 to £250, which includes the replacement of the flue gas temperature sensor and any necessary wiring repairs. This cost reflects the complexity of the repair and the need for a qualified technician.