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Vaillant Wiring Harness 0020135153

Vaillant

Vaillant Wiring Harness 0020135153

Vaillant wiring harness, part 0020135153, for ecoTEC PRO 24 and 28 VUW 246/5-3 and 286/5-3 boilers.

At a glance

  • Part type: wiring harness
  • Also known as 1383567
Manufacturer part no.
0020135153
Showing prices

£43.55

£36.29 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 0020135153 is a wiring harness used in ecoTEC PRO 24 and ecoTEC PRO 28 gas boilers. It carries low-voltage control and sensor connections between the boiler's electrical components, forming part of the appliance's internal wiring loom. It is a manufacturer-supplied electrical spare for the VUW 246/5-3 and VUW 286/5-3 ranges.

Signs this part needs replacing

  • Boiler fails to fire or locks out with no obvious fault at the gas or water side
  • Intermittent faults, random shutdowns or error codes that clear and return
  • Visible damage to the harness: chafed, cracked or heat-affected insulation
  • Corrosion, arcing marks or discolouration at the plug or terminal ends
  • Loose or poor-fitting connectors that will not seat securely on their mating terminals

Before you order

  • Confirm your boiler model and variant (VUW 246/5-3 or VUW 286/5-3, including R1/R2) against the data badge
  • Compare the connector count, plug types and routing of the existing harness with the part before fitting
  • Check the fault is actually in the harness and not at the board, sensor or connector it plugs into
  • Isolate the electrical supply and follow the manufacturer's wiring diagram when replacing

Not sure which part?

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