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Reznor Valve Nat Gas 1 Stage VK4105A 03 25141

Reznor

Reznor Valve Nat Gas 1 Stage VK4105A 03 25141

Single-stage natural gas valve, part 03 25141, for Reznor warm air and room sealed heaters.

At a glance

  • Also known as UDSA0325141, 2530438
Manufacturer part no.
03 25141
Showing prices

£327.60

£273.00 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 Reznor 03 25141 is a single-stage natural gas valve, designated VK4105A within the Reznor range. It controls the supply of gas to the burner on Reznor warm air unit and room sealed heaters, opening and closing under the appliance's control circuit. The part is listed for a wide spread of Reznor LCSA, UDSA, UDSB and UPA models.

Signs this part needs replacing

  • The burner fails to light despite the ignition sequence running and a gas supply being present at the appliance
  • The heater lights then drops out shortly after, or cycles on and off without reaching temperature
  • Repeated lockouts with no flame established at the burner
  • The burner flame is weak, unstable or uneven across the burner head
  • No audible click or valve actuation when the control circuit calls for heat

Before you order

  • Confirm the appliance model against the fits list above, as coverage varies across LCSA, UDSA, UDSB and UPA ranges
  • Check the part number on the existing valve matches 03 25141 or the alternative reference UDSA0325141
  • Verify the valve is a single-stage type and matches the gas type used by the appliance
  • Gas valve work must be carried out by a competent, registered engineer in line with current gas regulations

Not sure which part?

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