The Vaillant 0020046177 is a genuine OEM printed circuit board (PCB) designed for selected Vaillant VU system boilers. As the central electronic control unit, this PCB manages critical boiler functions including ignition, fan control, pump operation, safety circuits, and communication between internal sensors and components.

A faulty PCB can lead to ignition failure, error codes, intermittent operation, loss of heating/hot water, or complete boiler shutdown. Replacing it with this genuine Vaillant board ensures correct system control, improved reliability, and safe, efficient boiler performance.

Key Features:

• Genuine Vaillant VU control PCB

• Manages ignition, fan, pump & system safety functions

• Ensures correct communication between internal components

• Helps resolve error codes, ignition faults & irregular operation

• Built to Vaillant’s strict OEM quality standards

• Durable, long-life electronic design

• Direct-fit replacement for professional servicing

Compatibility

The Vaillant 0020046177 PCB is compatible with:

• Selected Vaillant VU system boilers

• Any Vaillant appliance listing 0020046177 in its official parts documentation

Engineers should always confirm exact compatibility using the boiler’s service manual or model-specific parts list.