What does the Glow-worm Easicom E720 fault code mean?
The E720 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 typically arises due to blockages or faults in the flue system that affect the safe expulsion of combustion gases.
Common Causes
- Blocked Flue: A blockage in the flue pipe 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, causing the boiler to shut down.
Can I fix it myself? (DIY)
It is highly 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 E720 fault could range from £150 to £300, depending on whether a blockage is cleared or if the pressure sensor needs replacement. This cost reflects the complexity of the work and the need for a qualified technician.