Electronic Display Vaillant VMW 21/245 and Other Models, Ref. 0020056562

Electronic Display Vaillant VMW 21/245 and Other Models, Ref. 0020056562

Stock · 1 unit

The Vaillant VMW 21/245 electronic display and other models is the control board that manages the ignition, burner modulation, pump, and safety features of the boiler. If it malfunctions, the boiler may not start, may lock out, or may operate erratically, potentially displaying the fault code F.70: Invalid product code (DSN). This part is compatible with boilers from the atmoTEC, aguaTEC, and ecoCOMPACT ranges, among others. It should be replaced when these symptoms or operational errors are detected.

VAT included

Compatibility

Vaillant boilers compatible with reference 0020056562

PCB with reference 0020056562. 25 verified compatibilities: VC 126/3-5 (R3,5) and VC 196/3-5 (R3,5).

Proven compatibility

Boiler modelFamilyVerification
Vaillant VC 126/3-5 (R3,5)atmoTEC/turboTEC (VC - heating only)Contrasted
Vaillant VC 196/3-5 (R3,5)atmoTEC/turboTEC (VC - heating only)Contrasted
Vaillant VC 246/3-5 (R3,5)atmoTEC/turboTEC (VC - heating only)Contrasted
Vaillant VC 306/3-5 (R3,5)atmoTEC/turboTEC (VC - heating only)Contrasted
Vaillant VC 194/4-5atmoTEC/turboTEC (VC - heating only)Contrasted
Vaillant VC 95/4-5 (R1)atmoTEC/turboTEC (VC - heating only)Contrasted
Vaillant VC 195/4-5 (R1)atmoTEC/turboTEC (VC - heating only)Contrasted
Vaillant VC 245/4-5 (R1)atmoTEC/turboTEC (VC - heating only)Contrasted
Vaillant VCW 194/4-5atmoTEC/turboTEC (VCW - combi)Contrasted
Vaillant VCW 196/3-5 (R3,5)atmoTEC/turboTEC (VCW - combi)Contrasted
Vaillant VCW 246/3-5 (R3,5)atmoTEC/turboTEC (VCW - combi)Contrasted
Vaillant VCW 244/4-5atmoTEC/turboTEC (VCW - combi)Contrasted
Vaillant VCW 195/4-5 (R1)atmoTEC/turboTEC (VCW - combi)Contrasted
Vaillant VCW 245/4-5 (R1)atmoTEC/turboTEC (VCW - combi)Contrasted
Vaillant VCI 196/3-5 (R3,5)aguaTEC (VCI)Contrasted
Vaillant VCI 246/3-5 (R3,5)aguaTEC (VCI)Contrasted
Vaillant VSC 126/3-5 (R1,R2,R3)ecoCOMPACT/auroCOMPACT (VSC)Contrasted
Vaillant VSC 196/3-5 (R1,R2,R3)ecoCOMPACT/auroCOMPACT (VSC)Contrasted
Vaillant VSC 246/3-5 (R1,R2,R3)ecoCOMPACT/auroCOMPACT (VSC)Contrasted
Vaillant VSC 126/2-CecoCOMPACT/auroCOMPACT (VSC)Contrasted
Vaillant VSC 196/2-CecoCOMPACT/auroCOMPACT (VSC)Contrasted
Vaillant VSC 246/2-CecoCOMPACT/auroCOMPACT (VSC)Contrasted
Vaillant VSC S 126/3-5ecoCOMPACT/auroCOMPACT (VSC)Contrasted
Vaillant VSC S 196/3-5ecoCOMPACT/auroCOMPACT (VSC)Contrasted
Vaillant VSC S 126/2-CecoCOMPACT/auroCOMPACT (VSC)Contrasted

Can't see your model or have questions? The printed reference takes precedence. How to check it ·

Guide

How to check if the reference 0020056562 is the part for your boiler

What determines it is not the boiler model, but the reference printed on the part you already have installed.

  1. Find the reference printed on the installed part and check whether it matches the catalogue reference 0020056562. If it is not visible, do not identify the part from its shape alone.
  2. Check the full boiler model on its data plate and look for it in the model associations on this page.
  3. Compare the connections and physical body with the original part before installation.
  4. If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Diagnosis and fault codes

Symptoms and faults that the PCB 0020056562 resolves.

The PCB controls the ignition, modulation, and safety features of the boiler. These are the typical symptoms and what to do:

Common symptoms and faults

  • 01

    The screen does not turn on and nothing is visible on the front of the boiler.

    Cause: The electronic display is not receiving power or its internal circuit has failed, even though the boiler continues to operate.

    Check that the boiler is powered and that the main fuse is not blown before declaring the display faulty.

  • 02

    The buttons or the remote control do not respond even though the boiler is on.

    Cause: The keyboard is integrated into the display module, so if its circuit fails, the key presses do not reach the boiler.

    Turn off and then turn on the boiler from the main switch to rule out a temporary hang-up before replacing the part.

  • 03

    The fault codes do not appear on the display when the boiler is locked.

    Cause: The display translates the boiler's internal code into the number or letter that is visible; if it fails, the warning does not appear even though the fault exists.

    If there is any LED flashing or a sequence of beeps, note the pattern: it may provide guidance on the actual fault before replacing the PCB.

  • 04

    The screen is visible, but with incomplete symbols, flickering or partially lit.

    Cause: A loose connection in the flat connector that links the display to the PCB can cause intermittent faults of this type.

    Open the boiler and check that the flat cable or the connector of the display are properly connected before replacing the module.

Fault codes from Vaillant that this part resolves.

CodeFaultDiagnosis and solution
F.70Invalid product code (DSN): there is no valid appliance variant for the display and/or the electronics.Incorrect replacement or pairing of the display (0020056562) with the PCB causes loss/misalignment of the DSN; after mounting display+PCB simultaneously, the unit enters F.70. Verify by accessing d.93 to adjust the device identification and check the display↔PCB harness/connector.

These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.

Technical data

Data sheet for the Vaillant 0020056562 PCB.

Catalogue reference
0020056562
Brand
Vaillant
Type of part
PCBs (control boards)
Units in stock
1 unit
Status
Refurbished
Warranty
1 year
Shipping
1-2 business days
Return
14 days

Data read on the part and in the manufacturer's documentation

What we have not been able to verify does not appear here.

Code on the label of the PCB
0020045417
Boiler model according to external sources (not resolved)
Vaillant Ecotec Plus 824/831/837, kit 0020056561 — does not match the compatibility with Turbotec Plus/VMW indicated.
Documentation

Manuals and technical documentation

Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.

Frequently Asked Questions

Frequently asked questions about the PCB 0020056562

What code is on the sticker of this Vaillant control board?
0020045417, which is different from the sales reference 0020056562.
When should this screen be replaced in a Vaillant VC 245/4-5?
When the display does not turn on or does not respond to the controls.

Spare parts related to Vaillant ecoCOMPACT/auroCOMPACT (VSC)

Delivery 1–2 daysworking days, mainland Spain
1-year warrantyreviewed and tested
14-day returnuninstalled parts
Technical supportwe verify your model
Electronic Display Vaillant VMW 21/245 and Other Models, Ref. 0020056562