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Hamworthy 573409112 Air Proving Switch

Hamworthy

Hamworthy 573409112 Air Proving Switch

Air proving switch, part number 573409112, manufactured by Hamworthy for use in its fan-assisted appliances.

At a glance

  • Also known as 2065424
Manufacturer part no.
573409112
Showing prices

£229.38

£191.15 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 Hamworthy 573409112 is an air proving switch — a pressure-sensing device that confirms air movement within a fan-assisted appliance before the control sequence is allowed to continue. It is manufactured by Hamworthy and identified by part number 573409112. The switch responds to the pressure differential created by the fan, closing or opening its contacts to signal that combustion air is present.

Before you order

  • Confirm the part number on the existing component matches 573409112 before ordering.
  • Check the appliance's technical documentation to confirm the switch type and connection arrangement required.
  • Inspect the condition of the sensing tubes and electrical connections at the same time, as these affect switch operation.

Not sure which part?

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