What does the Vaillant ecoFIT pure E119 fault code mean?
The E119 fault code on a Vaillant ecoFIT pure boiler indicates low water pressure within the system. This can lead to inadequate heating and hot water supply, requiring immediate attention to restore normal operation.
Common Causes
- Low Pressure in the System: This can occur due to leaks in the heating system or if the boiler has not been topped up properly.
- Faulty Pressure Relief Valve: A malfunctioning pressure relief valve may allow water to escape, leading to a drop in pressure.
Can I fix it myself? (DIY)
You can attempt to fix low water pressure by checking the pressure gauge on your boiler and using the filling loop to add water if necessary. However, if you suspect leaks or issues with the pressure relief valve, it is essential to call a Gas Safe Engineer for safety and compliance.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing low water pressure issues, such as replacing a faulty pressure relief valve, could be around £150 to £250. This includes parts and labour, reflecting the complexity of diagnosing and fixing the issue safely.