What does the Worcester Bosch Greenstar CDi E119 fault code mean?
The E119 fault code indicates that the boiler is experiencing low water pressure, which can prevent it from operating efficiently. This issue typically arises when the pressure drops below the required level, affecting the heating system’s performance.
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 within the system.
Can I fix it myself? (DIY)
You can attempt to fix low water pressure by checking the pressure gauge on the boiler and using the filling loop to add water if necessary. However, if you suspect a leak or other serious issues, it is crucial to call a Gas Safe Engineer for assistance.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing low water pressure issues, such as replacing a pressure relief valve, is around £150-£200. This cost reflects the price of the part and the labour involved in the repair.