What does the Glow-worm Easicom E220 fault code mean?
The E220 fault code on the Glow-worm Easicom indicates a problem with the domestic hot water (DHW) flow. This typically means that the boiler is unable to detect or maintain the required flow rate of hot water.
Common Causes
- Blocked DHW Flow Sensor: A blockage in the flow sensor can prevent accurate readings, leading to the fault code being triggered.
- Faulty Diverter Valve: If the diverter valve is stuck or malfunctioning, it may not properly direct water flow, causing issues with hot water delivery.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves gas and electrical components that can be dangerous if handled improperly. Attempting DIY repairs could void your warranty or lead to further complications.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the E220 fault could range around £150 to £250, depending on whether the flow sensor needs cleaning or replacement, or if the diverter valve requires servicing or replacement.