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Vaillant Gas Control Valve 0020268758

Vaillant

Vaillant Gas Control Valve 0020268758

Gas control valve for Vaillant EcoTec VU 446/5-5 boilers, regulating gas flow to the burner.

At a glance

  • Appliance family: EcoTec VU 446/5-5
  • Also known as 1388658
  • Work on the gas train must be carried out by a Gas Safe registered engineer
Manufacturer part no.
0020268758
Showing prices

£144.30

£120.25 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 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 Vaillant 0020268758 is a gas control valve used on Vaillant EcoTec VU 446/5-5 appliances. It regulates the flow of gas to the burner, opening and modulating supply in line with the boiler's demand signal. It is a serviceable component within the gas train and is fitted by a Gas Safe registered engineer.

Signs this part needs replacing

  • The boiler fails to ignite, or ignition is intermittent despite a confirmed gas supply
  • The burner extinguishes shortly after lighting
  • Gas valve operation is noisy, sticking or slow to respond to demand
  • The appliance locks out repeatedly with a fault relating to the gas train
  • Visible damage, corrosion or leakage at the valve body or its connections

Before you order

  • Confirm the appliance model and GC number from the data badge before ordering
  • Check the existing valve against the part number 0020268758
  • Work on the gas train must be carried out by a Gas Safe registered engineer
  • Verify the boiler is isolated from the gas and electrical supply before any replacement

Not sure which part?

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