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Hamworthy Flow Switch Assembly 533901608

Hamworthy

Hamworthy Flow Switch Assembly 533901608

Flow switch assembly, part 533901608, for Hamworthy boilers.

At a glance

  • Also known as 2064902
Manufacturer part no.
533901608
Showing prices

£184.60

£153.83 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 Hamworthy flow switch assembly, part number 533901608, is a hydraulic sensing component used on Hamworthy boilers. It detects water flow through the appliance circuit and signals the control board that flow is present, so the boiler can fire and run safely. It is supplied as a complete assembly.

Signs this part needs replacing

  • Boiler fails to fire, or fires intermittently, when there is a demand for heat or hot water
  • Lockout or fault codes relating to flow, pump or water detection
  • Domestic hot water runs hot and cold, or the boiler short-cycles
  • Pump runs but the boiler does not respond to the demand
  • Repeated resets are needed to restore operation

Before you order

  • Confirm the part number 533901608 matches the component fitted to your appliance
  • Check the boiler model and serial number against the manufacturer's parts list
  • Inspect the existing switch and its wiring connections to confirm the fault lies with the assembly
  • Gas appliance work should be carried out by a competent, registered engineer

Not sure which part?

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