Viessmann Combi Boiler Three-Way Valve Motor (Straight Type, DC 24V)

Used in Viessmann combi boilers, the three-way valve motor is a critical actuator part that allows the appliance to switch between central heating and domestic hot water modes. Thanks to its straight-type step motor design, it positions the three-way valve precisely and in a controlled manner.

With a DC 24V operating voltage, this valve motor moves according to the signals from the combi boiler PCB, ensuring that the hot water and heating functions work correctly and smoothly.

It is a spare part frequently replaced in service work for faults such as no hot water, central heating not starting, water constantly switching modes or noise from the valve motor.

Product Features

• Part Type: Combi Boiler Three-Way Valve Motor
• Motor Type: Step Actuator (Straight Type)
• Operating Voltage: DC 24V
• Connection Type: Socket
• Purpose: Central heating / hot water diversion

Compatible Brands

• Viessmann
• Bosch
• Buderus
• Junkers
• Worcester

Part Codes

• Viessmann: 7822764 / 7841824
• Bosch / Junkers / Buderus: 87186828390
• Bosch / Junkers: 87161068470 / 87161068450

Installation and Safe Use

Before installation, make sure the valve motor is of straight type design and compatible with the existing valve. The appliance must be de-energized before making electrical connections. For long-lasting and safe use, installation by an authorized service or experienced technician is recommended.