What does the Glow-worm Easicom E440 fault code mean?
The E440 fault code on the Glow-worm Easicom indicates a problem with the flue gas temperature sensor, which is crucial for monitoring the temperature of the exhaust gases. This fault can lead to inefficient operation or potential safety hazards if not addressed promptly.
Common Causes
- Faulty Temperature Sensor: The sensor may be malfunctioning or damaged, leading to incorrect readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can cause communication failures, triggering the fault code.
Can I fix it myself? (DIY)
It is strongly advised 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 the E440 fault code 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 work and the need for a qualified technician.