Ferroli 3-Way Valve Cartridge Kit 3980I030

The 3-way valve cartridge kit is a Ferroli diverter valve component, supplied under part number 3980I030. It sits inside the diverter valve assembly on Bluehelix Hitech RRT combi boilers and controls the changeover between domestic hot water and central heating modes. The cartridge is the moving internal element, so replacing it restores correct valve operation without renewing the full valve body.

• Domestic hot water runs cold or only warms intermittently while the heating is off
• Radiators heat up when a hot tap is opened, indicating the valve is not diverting fully
• Hot water temperature fluctuates or drops as the tap runs
• The valve sticks in one position, so the boiler stays in heating or hot water mode
• The cartridge shows scale, debris or perished seals when the valve is stripped down

• Confirm the boiler model and GC number against the fitment list above
• Check the part number on the existing cartridge or valve assembly where visible
• Establish whether the cartridge alone is required or whether the complete valve body is damaged
• Isolate the boiler, drain the relevant section and depressurise before stripping the valve