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Vaillant Printed Circuit Board 0020140423

Vaillant

Vaillant Printed Circuit Board 0020140423

Vaillant printed circuit board 0020140423 for ecoTEC VU series gas boilers.

At a glance

  • Part type: printed circuit board
  • Appliance family: ecoTEC VU
  • Also known as 1385848
Manufacturer part no.
0020140423
Showing prices

£344.30

£286.92 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Vaillant 0020140423 is a printed circuit board used in ecoTEC VU series gas boilers. It is the control board that manages the boiler's operating sequence and electrical functions. This part is listed for the VU 806, VU 1006 and VU 1206 ranges across R2, R3 and R4 revisions.

Signs this part needs replacing

  • The boiler fails to power up or shows no display or indicator activity.
  • Fault codes relating to the control board appear and cannot be cleared.
  • The boiler locks out repeatedly or will not complete an ignition sequence.
  • Functions such as heating demand or pump control stop responding.
  • Visible damage, scorching or moisture tracking on the board.

Before you order

  • Confirm the boiler model and revision (R2, R3 or R4) against the fitment list.
  • Check the existing board's part number matches 0020140423.
  • Verify the fault is traced to the board rather than sensors, wiring or the supply.
  • Isolate the boiler's electrical supply before removing or fitting the board.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.