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Vaillant Gas Section 0020110999

Vaillant

Vaillant Gas Section 0020110999

Vaillant gas section, part number 0020110999, for VU 466-7, VU 466/4-5 and Ecomax 646 gas boilers.

At a glance

  • Also known as VAILLANT0020110999, 1383275
  • Work on the gas train must be carried out by a Gas Safe registered engineer
Manufacturer part no.
0020110999
Showing prices

£366.76

£305.63 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next 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 gas section is a Vaillant component that forms part of the gas valve assembly on the VU 466 range of gas boilers. It sits within the gas train and controls the passage of gas through to the burner. It is supplied as an individual part under Vaillant part number 0020110999.

Signs this part needs replacing

  • The boiler fails to light or repeatedly locks out on ignition
  • Unstable or fluctuating flame at the burner
  • Gas smell or a detected leak around the gas train
  • Whistling or unusual noise from the gas valve assembly
  • The boiler will not hold a steady gas rate during commissioning checks

Before you order

  • Confirm your boiler model against the fitment list above
  • Check the GC number on the appliance data badge matches your model
  • Verify the existing part number on the gas section before removal
  • Work on the gas train 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.