What does the Glow-worm Easicom E890 fault code mean?
The E890 fault code on the Glow-worm Easicom indicates a flue gas pressure short circuit, which suggests that there is an issue with the flue gas pressure switch or the flue system itself. This can prevent the boiler from operating safely and efficiently.
Common Causes
- Blocked Flue: A blockage in the flue can restrict the flow of flue gases, leading to pressure issues.
- Faulty Pressure Switch: A malfunctioning flue gas pressure switch may fail to detect the correct pressure, causing the error code to trigger.
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 E890 fault could range from £150 to £300, depending on whether the issue is a simple flue cleaning or requires replacement of the pressure switch.