What does the Glow-worm Easicom E920 fault code mean?
The E920 fault code indicates a flue gas pressure fault, which suggests that the boiler is not able to properly vent exhaust gases. This can lead to unsafe operating conditions and requires immediate attention.
Common Causes
- Blocked Flue: A blockage in the flue system can prevent proper gas venting, causing pressure issues.
- Faulty Pressure Switch: A malfunctioning pressure switch may fail to detect the correct flue gas pressure, triggering the fault code.
Can I fix it myself? (DIY)
It is highly recommended to call a Gas Safe Engineer for 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 an E920 fault could be around £150 to £250, primarily depending on whether the flue needs cleaning or the pressure switch needs replacement.