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Vaillant Burner 0020143478

Vaillant

Vaillant Burner 0020143478

Vaillant burner 0020143478 for ecoTEC VU GB 1006/5-5 and 1206/5-5 R2 and R3 gas boilers.

At a glance

  • Part type: burner
  • Appliance family: ecoTEC VU GB 1006/5-5 and 1206/5-5
  • Also known as 1385920
  • Work on the combustion circuit must be carried out by a Gas Safe registered engineer
Manufacturer part no.
0020143478
Showing prices

£682.25

£568.54 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 0020143478 is a burner assembly used in Vaillant ecoTEC VU GB open-vent gas boilers. It sits at the heart of the combustion chamber, mixing gas and air and presenting the flame across the burner surface. It is listed under gas boiler spares for the 1006/5-5 and 1206/5-5 ranges.

Signs this part needs replacing

  • Unstable or lifting flame at the burner surface
  • Sooting, discolouration or visible heat damage on the burner
  • Combustion readings outside the expected range on a flue gas analysis
  • Repeated ignition or flame supervision faults traced to the burner
  • Cracking, distortion or corrosion of the burner body or mesh

Before you order

  • Confirm the boiler model and GC number against the fitment list above
  • Check whether the appliance is an R2 or R3 variant, as both are listed
  • Inspect the burner seal, gasket and fixings and replace any that are perished or damaged
  • Work on the combustion circuit must be carried out by a Gas Safe registered engineer

Not sure which part?

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