Vaillant VC 126-306 VCI 196-246 VCW 196-246 Boiler PCB 0020092478 

Product Overview

The Vaillant VC 126-306 VCI 196-246 VCW 196-246 Boiler PCB 0020092478 is a electronic control board used within Vaillant heating appliances. The PCB (Printed Circuit Board) forms part of the boiler's control system and is responsible for managing and monitoring various appliance functions to ensure safe and efficient operation. 

As part of the boiler's electrical control system, this component helps facilitate communication between key boiler components and supports the appliance's normal heating and hot water operation.

ℹ️ Product Condition Options:

This item may be available in a refurbished condition. Please select your desired option from the dropdown menu above. All refurbished components are professionally inspected to ensure reliability and performance.

Technical Insight & Common Servicing Requirements

Printed circuit boards are critical electronic components found within modern boiler systems and are continually exposed to operational demands, electrical loads, and environmental conditions. Over time, electronic components may develop faults that can affect boiler performance.

During routine servicing or repair work, engineers may inspect PCB assemblies for signs of:

• Boiler lockouts or fault codes.
• Intermittent operational issues.
• Failure to respond to heating or hot water demands.
• Damaged electrical connections or electronic components.
• Preventative replacement during major repair procedures.

A faulty PCB can affect boiler operation, potentially resulting in reduced performance, operational faults, or complete appliance shutdown.

Compatibility

This PCB (MPN: 0020092478) is suitable for use in the following Vaillant boilers:

• VC 126-306/3-5 (R3.5)
• VCI 196+246/3-5 (R3.5)
• VCW 196/3-5 A (R3-5)
• VCW 196+246/3-5 (R3.5)

Please verify the manufacturer part number against your boiler's technical documentation, spare parts catalogue, or existing component before ordering to ensure correct fitment.

Safety Advice

Important: Inspection, servicing, and replacement of boiler components should only be carried out by a qualified and competent heating engineer.

Boilers contain electrical components, gas-carrying parts, and pressurised systems. Always isolate the appliance and follow the manufacturer's instructions before carrying out any maintenance or repair work. Installation and commissioning should be performed in accordance with current regulations and manufacturer guidance.