What does the Glow-worm Flexicom E119 fault code mean?
The E119 fault code on the Glow-worm Flexicom indicates low water pressure within the heating system. This can prevent the boiler from operating efficiently and may lead to further issues if not addressed promptly.
Common Causes
- Low Water Pressure: This can occur due to leaks in the system, which allow water to escape and reduce pressure.
- Faulty Pressure Relief Valve: If the pressure relief valve is malfunctioning, it may not maintain the correct pressure, leading to a drop.
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 until it reaches the recommended level (usually between 1-1.5 bar). If the pressure continues to drop or 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, such as replacing a faulty pressure relief valve, could be around £150 to £250. This includes parts and labour, reflecting the complexity of the repair and the need for a qualified engineer.