What does the Glow-worm Energy E119 fault code mean?
The E119 fault code indicates that the boiler is experiencing low water pressure, which can prevent it from operating efficiently or safely. This issue typically requires attention to restore proper functionality.
Common Causes
- Low Water Pressure: This can occur due to leaks in the system or insufficient water supply.
- Faulty Pressure Relief Valve: A malfunctioning valve may allow water to escape, leading to decreased pressure.
Can I fix it myself? (DIY)
You can attempt to fix low water pressure by checking the pressure gauge on your boiler. If it reads below 1 bar, you can use the filling loop to add water to the system. However, if you suspect a leak or other issues, it is essential to call a Gas Safe Engineer for safety reasons.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing low water pressure issues is around £150, which includes potential replacement of the pressure relief valve or repairs to leaks. This cost reflects the complexity of diagnosing and fixing the underlying issues.