How to fix Baxi EcoBlue fault code E119

What does the Baxi EcoBlue E119 fault code mean?

The E119 fault code on the Baxi EcoBlue boiler indicates low water pressure within the system. This can lead to insufficient heating and may prevent the boiler from operating correctly.

Common Causes

  • Water Leak: A leak in the heating system can cause a drop in water pressure, leading to the E119 fault code.
  • Pressure Relief Valve Issue: A faulty pressure relief valve may allow water to escape, resulting in low pressure.

Can I fix it myself? (DIY)

You can attempt to fix the low water pressure by checking the pressure gauge on your boiler and using the filling loop to add water until it reaches the recommended level (usually between 1-1.5 bar). If the issue persists or if you suspect a leak, it is advisable to call a Gas Safe Engineer.

Estimated Repair Cost (2026 UK Prices)

The estimated repair cost for addressing low water pressure issues on a Baxi EcoBlue boiler is around £150. This includes potential costs for parts such as a pressure relief valve or labour for a Gas Safe Engineer to identify and fix leaks.