What does the Glow-worm Easicom E570 fault code mean?
The E570 fault code indicates an open circuit in the flue gas temperature sensor, which means the boiler is unable to accurately measure the temperature of the flue gases. This can prevent the boiler from operating safely and efficiently, leading to potential shutdowns.
Common Causes
- Faulty Flue Gas Temperature Sensor: The sensor may be damaged or malfunctioning, leading to incorrect readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can cause an open circuit, preventing proper communication with the boiler’s control system.
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 require professional expertise for safety reasons.
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 work and the need for a qualified engineer.