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Vaillant Wiring Harness 0020135159

Vaillant

Vaillant Wiring Harness 0020135159

Vaillant wiring harness 0020135159 for ecoTEC PLUS and VU series gas boilers.

At a glance

  • Part type: wiring harness
  • Appliance family: ecoTEC PLUS / VU
  • Also known as 1383491
Manufacturer part no.
0020135159
Showing prices

£28.10

£23.42 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 0020135159 wiring harness is a manufacturer-supplied electrical loom for Vaillant gas boilers in the ecoTEC PLUS and VU ranges. It carries control and ignition circuit connections between the boiler's electrical components. It is listed under the wiring category of Vaillant gas boiler spares.

Signs this part needs replacing

  • Boiler fails to ignite or locks out intermittently with no other obvious cause
  • Fault codes relating to the ignition or control circuit recur after resetting
  • Visible damage to the loom, such as cracked insulation, chafed or exposed conductors
  • Overheating, discolouration or corrosion at the harness connectors
  • Intermittent operation that changes when the loom or its plugs are moved

Before you order

  • Confirm your boiler model and variant, including the R designation, against the fit list
  • Check the GC number on the appliance data badge where one is quoted
  • Inspect the existing harness and connectors to confirm the fault lies with the loom
  • Verify the part number 0020135159 matches the number on the component being replaced

Not sure which part?

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