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Vaillant Wiring Harness 0020211941

Vaillant

Vaillant Wiring Harness 0020211941

Vaillant combi wiring harness, part number 0020211941, for Ecotec, Ecofit and Home combi appliances.

At a glance

  • Also known as 1388054
Manufacturer part no.
0020211941
Showing prices

£21.52

£17.93 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 0020211941 is a wiring harness supplied for Vaillant combi boilers across the Ecotec, Ecofit and Home ranges. It carries the low-voltage control and sensor wiring between the boiler's electrical components and the main PCB. The harness is a plug-in assembly, so it is replaced as a complete unit rather than repaired in situ.

Signs this part needs replacing

  • Cracked, chafed or heat-damaged insulation on one or more conductors
  • Burn marks, discolouration or corrosion at the plug terminals
  • Intermittent faults or error codes that clear when the harness is moved
  • Loose or poorly seated connectors that will not latch securely
  • Continuity faults traced to a broken conductor within the harness

Before you order

  • Confirm your appliance model against the fit list above before ordering
  • Check the part number printed on the existing harness matches 0020211941
  • Inspect the connector count and layout on the old harness against the replacement
  • Isolate the electrical supply to the boiler before removing or fitting the harness

Not sure which part?

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