What does the Glow-worm Easicom E780 fault code mean?
The E780 fault code on the Glow-worm Easicom indicates that the flue gas pressure is stuck, which can prevent the boiler from operating efficiently. This issue may arise from blockages or faults in the flue system, affecting the safe expulsion of combustion gases.
Common Causes
- Blocked Flue: A blockage in the flue can restrict the flow of flue gases, leading to pressure issues.
- Faulty Pressure Sensor: A malfunctioning pressure sensor may incorrectly read the flue gas pressure, triggering the fault code.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer to address 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 E780 fault could range from £150 to £300, depending on whether the issue is a simple blockage or requires replacement of the pressure sensor.