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Vaillant Boiler Part - 0020036861

Vaillant Boiler Part - 0020036861

Vaillant printed circuit board for eco TEC VU (condensing) boilers. The control centre of a boiler...

Best current price£110.00from B&Q

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Product Information

Full details

This Vaillant printed circuit board (PCB), model 0020036861, is designed for eco TEC VU condensing boilers. It serves as the central control unit, monitoring and regulating all boiler operations through sensors and switches, while also enforcing safety protocols to prevent faults. A key caveat is that this part must be installed by a certified Gas Safe engineer and is non-returnable.

All features

Model Part Number0020036861
BrandVaillant

Extended Product Information

FAQs

Who should install this Vaillant PCB?

This part must be installed by a certified Gas Safe engineer due to safety regulations and the technical nature of the installation.

Can I return this part if I order the wrong one?

No, this boiler part is non-returnable. Please ensure you have confirmed compatibility with your specific Vaillant eco TEC VU boiler model before purchasing.

How do I know if my PCB needs replacing?

Symptoms can include intermittent operation, the boiler shutting down frequently with error codes, or a complete failure to ignite. A Gas Safe engineer can diagnose if the PCB is the source of the problem.

What does a printed circuit board do in a boiler?

The PCB is the boiler's control centre. It monitors all components via sensors and switches, manages the ignition and heating process, and activates safety measures if faults are detected.

Is this PCB compatible with all Vaillant boilers?

No, this specific PCB (0020036861) is designed for Vaillant eco TEC VU (condensing) boiler models only. Always check your boiler's model number.

What happens if the PCB fails?

A failed PCB will typically result in the boiler not functioning at all, leading to a loss of heating and hot water. Safety features enforced by the PCB will also be compromised.

Troubleshooting

Boiler not firing up

Check for error codes on the boiler display. Consult a Gas Safe engineer as this may indicate a PCB fault or other system issue.

Intermittent heating or hot water supply

This could be due to a faulty sensor connected to the PCB or the PCB itself. A Gas Safe engineer will need to diagnose the exact cause.

Boiler shuts down unexpectedly

Note any error codes displayed. This often signifies a safety interlock triggered by the PCB due to a detected fault (e.g., high pressure, low water). Contact a Gas Safe engineer for inspection.

Error code related to ignition or flame sensing

This often points to an issue with the PCB's control over the ignition sequence or flame verification. Professional diagnosis is required.

Pros and Cons

Pros

  • Essential component for boiler operation and safety.
  • Ensures precise control over heating and hot water.
  • Includes critical safety shutdown features.
  • Directly compatible with Vaillant eco TEC VU models.

Cons

  • Requires professional installation by a Gas Safe engineer.
  • Non-returnable item, so ensure compatibility before purchase.
  • Component failure can lead to complete boiler shutdown.

Setup, Compatibility & Care

Setup and Installation:

This printed circuit board is a critical component and must be installed by a certified Gas Safe engineer. Incorrect installation can lead to serious safety hazards and damage to the boiler.

Compatibility:

This PCB is specifically designed for Vaillant eco TEC VU (condensing) boilers. It is crucial to confirm your boiler model before purchasing. Refer to your boiler's manual or consult a qualified engineer if unsure.

Care:

As a sensitive electronic component, the PCB itself does not require direct user care. However, ensuring the boiler system is well-maintained, including regular servicing by a Gas Safe engineer, will contribute to the longevity and reliable operation of the PCB and the boiler as a whole. Keep the boiler casing clean and ensure adequate ventilation around the unit.

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