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Hamworthy Temperature Sensor 573407085

Hamworthy

Hamworthy Temperature Sensor 573407085

Temperature sensor and return thermostat for Hamworthy Milborne 501 and 502 wall hung condensing boilers.

At a glance

  • Also known as 2064618
Manufacturer part no.
573407085
Showing prices

£50.76

£42.30 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 573407085 is a temperature sensor and return thermostat used on Hamworthy Milborne wall hung condensing boilers. It monitors return water temperature and supplies that reading to the boiler's control system. It is listed as a thermistor spare for gas boilers.

Signs this part needs replacing

  • Boiler locks out or displays a temperature-related fault code
  • Heating or hot water runs at the wrong temperature
  • Boiler short-cycles or modulates erratically
  • Return temperature readings are inconsistent or implausible
  • Boiler fails to fire or cuts out shortly after ignition

Before you order

  • Confirm the appliance is a Hamworthy Milborne 501 or 502 wall hung condensing boiler.
  • Check the existing sensor's part number against 573407085.
  • Verify the sensor's connection and mounting arrangement match the boiler before fitting.

Not sure which part?

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