What does the Glow-worm Easicom E900 fault code mean?
The E900 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 suggests a blockage or malfunction in the flue system, affecting 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 Switch: A malfunctioning pressure switch may fail to detect the correct flue gas pressure, causing the boiler to display the E900 fault code.
Can I fix it myself? (DIY)
It is highly recommended to call a Gas Safe Engineer to address this issue, as it involves gas and electrical components that can be dangerous if handled improperly. Attempting DIY repairs could lead to safety hazards.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the E900 fault could range from £150 to £300, depending on whether the issue is a simple flue cleaning or requires replacement of the pressure switch. This estimate includes labour and parts.