The Vaillant 8000010644 is a genuine OEM printed circuit board (PCB) designed for precise control and safe operation of compatible Vaillant heating appliances. As the primary electronic control unit, this PCB manages key boiler functions such as ignition, fan operation, pump control, sensors, safety circuits, and communication between internal components.

A failing PCB can cause irregular boiler behaviour, error codes, failed ignition, intermittent operation, or complete shutdown. Replacing it with this genuine Vaillant board ensures restored reliability, correct system functionality, and long-term performance.

Key Features:

• Genuine Vaillant PCB

• Controls key operational and safety functions

• Ensures communication between boiler components

• Manufactured to Vaillant’s strict OEM quality standards

• Helps resolve control failures, error codes & intermittent faults

• Durable design for long service life

• Suitable for professional installation and servicing

Compatibility

The Vaillant 8000010644 PCB is compatible with selected Vaillant boilers and heating appliances, including:

• Models that list 8000010644 in their official Vaillant parts documentation

• Typically used in certain ecoTEC, ecoFIT, or specialist Vaillant appliances (model dependent)

Installers must verify exact compatibility using the appliance’s service manual or parts list.