What does the Baxi Megaflo E119 fault code mean?
The E119 fault code on a Baxi Megaflo boiler indicates low water pressure within the system. This can prevent the boiler from operating efficiently and may lead to heating or hot water issues.
Common Causes
- Low Pressure in the System: This can occur due to leaks in the heating system or insufficient water supply.
- Faulty Pressure Relief Valve: If the pressure relief valve is malfunctioning, it may not maintain the correct pressure, leading to drops.
Can I fix it myself? (DIY)
You can attempt to fix low water pressure by checking the pressure gauge and using the filling loop to add water to the system until it reaches the recommended pressure (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 could range from £100 to £250, depending on whether it involves simply repressurising the system or replacing a faulty component like a pressure relief valve.