Vaillant 014731 Valve - Central heating service

The Vaillant central heating service valve, part number VAILLANT014731, is a replacement valve designed for Vaillant heating appliances. It controls the flow of water within the appliance, helping to maintain dependable performance and safe operation. This valve is classified as a general valve assembly and is supplied by Vaillant as a spare part. It falls under the standard water heaters category (260504) and is not classified as a gas part. As a service valve, it is used to regulate or isolate water flow in the central heating circuit. The valve is an essential component in the heating system, ensuring that water flows correctly to maintain the desired temperature and pressure. It is designed to replace the existing valve of the same part number, helping to restore proper operation.

• Water leaking from the valve body or spindle
• Difficulty turning the valve handle or operating the valve
• Reduced or no water flow through the valve
• Unusual noises coming from the valve area
• System pressure dropping without an obvious cause
• Visible corrosion or mineral buildup on the valve
• The valve may become stiff or seized over time, preventing proper adjustment

• Confirm the part number VAILLANT014731 matches the valve you are replacing
• Check your appliance's model and serial number to ensure compatibility
• Inspect the valve connections and order any required seals or gaskets separately
• Check for any visible damage to the valve before installation
• Ensure the system is drained and depressurised before replacing the valve