Baxi 720789401 Diverter Valve Assembly

The Baxi 720789401 is a brass flow assembly supplied without a bypass, manufactured by Baxi for use in its Duotec 2 and Platinum 2 GA appliance families. It forms part of the water circuit inside the appliance, directing flow through the brass body as water passes through the unit. The assembly is a serviceable component, so it can be removed and replaced when the original becomes restricted, damaged or starts to weep.

• Reduced flow at hot water outlets while the appliance is running
• The appliance fails to register a hot water draw and does not fire
• Visible weeping or staining around the brass body or its connections
• Scale, sludge or debris restricting the internal waterways
• Intermittent or inconsistent flow that changes with demand

• Confirm the part number 720789401 against the label or documentation for your appliance before purchase
• Check the appliance model and serial number, as Duotec 2 and Platinum 2 GA variants can differ in their internal layout
• Inspect the surrounding seals and connections and replace any that are perished or compressed while the assembly is removed