What does the Glow-worm Easicom E540 fault code mean?
The E540 fault code on the Glow-worm Easicom indicates a flue gas pressure fault, which suggests that the boiler is not able to properly vent exhaust gases. This can lead to safety concerns and requires immediate attention to ensure safe operation.
Common Causes
- Blocked Flue: A blockage in the flue system can prevent the proper expulsion of flue gases, triggering the fault code.
- Fan Malfunction: If the fan responsible for pushing flue gases out is faulty or not operating correctly, it can lead to pressure issues.
Can I fix it myself? (DIY)
It is strongly advised 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 an E540 fault could range from £150 to £300, depending on whether the issue is a simple flue cleaning or requires replacement of the fan or other components.