What does the Glow-worm Easicom E470 fault code mean?
The E470 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 flow, leading to pressure issues.
- Faulty Pressure Switch: A malfunctioning pressure switch may not accurately detect the flue gas pressure, causing the fault code to trigger.
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 safety components that require professional expertise.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an E470 fault could range from £150 to £300, depending on whether the issue is a simple blockage or requires replacement of the pressure switch.