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Vaillant Printed Circuit Board HMU 0020278881

Vaillant

Vaillant Printed Circuit Board HMU 0020278881

Vaillant printed circuit board, part number 0020278881, with the HMU board designation.

At a glance

  • Also known as 1388612
Manufacturer part no.
0020278881
Showing prices

£329.17

£274.31 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 0020278881 is a printed circuit board carrying the HMU designation, produced by Vaillant for use in its heating appliances. It forms the control electronics assembly for the functions assigned to the HMU board. Identify the existing board by its printed part number before ordering.

Before you order

  • Confirm the part number on the board being replaced matches 0020278881.
  • Check that the HMU designation is the one required for the appliance.
  • Verify the appliance model against the manufacturer's documentation before ordering.
  • Refer to the manufacturer's instructions for any configuration or settings work required after fitting.

Not sure which part?

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