What does the Ideal Mini E119 fault code mean?
The E119 fault code on the Ideal Mini boiler indicates low water pressure within the system. This can prevent the boiler from operating efficiently and may lead to further issues if not addressed promptly.
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: If the pressure relief valve is faulty or has been activated, it may allow water to escape, resulting in low 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 to the system until it reaches the recommended pressure (usually between 1-1.5 bar). If you are unsure or if the issue persists, 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, such as replacing a pressure relief valve, is around £150-£200. This includes parts and labour, as the valve is a common component that may need replacement if it is found to be faulty.