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Vaillant Wiring Harness 0020135162

Vaillant

Vaillant Wiring Harness 0020135162

Wiring harness, part 0020135162, for Vaillant ecoTEC PLUS and VUW series gas boilers.

At a glance

  • Part type: wiring harness
  • Appliance family: ecoTEC PLUS / VUW
  • Also known as 1383585
Manufacturer part no.
0020135162
Showing prices

£39.42

£32.85 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 0020135162 wiring harness is a multi-core electrical loom used on ecoTEC PLUS and VUW series gas boilers. It carries low-voltage control and sensor signals between the boiler's main components, including the printed circuit board and the associated plugs and connectors. It is supplied as a wiring spare for the ecoTEC PLUS range.

Signs this part needs replacing

  • Intermittent faults, lockouts or error codes that clear and return without a consistent cause
  • Boiler failing to fire, or cutting out shortly after ignition, where the board and sensors test correctly
  • Visible damage to the loom: chafed, cracked, heat-frayed or brittle insulation on the conductors
  • Loose, corroded or discoloured terminals in the harness plugs, or a plug that will not latch securely
  • Localised burning, scorching or a smell of hot plastic around the harness or its connectors

Before you order

  • Confirm your boiler's exact model and variant (R1, R2, R4 or R6) against the fitment list above
  • Check the GC number on the appliance data badge against the model you are ordering for
  • Compare the connector count, plug types and routing of the existing harness with the part before fitting
  • Establish that the fault lies in the harness rather than the PCB, sensor or connector it plugs into

Not sure which part?

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