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Hamworthy Limit Thermostat 533901180

Hamworthy

Hamworthy Limit Thermostat 533901180

Hamworthy limit thermostat with a 90–110°C range and SPST switching, suitable for Purwell and Purwell Classic/Lowline floor standing boilers.

At a glance

  • Also known as 2061948
Manufacturer part no.
533901180
Showing prices

£115.16

£95.97 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

Hamworthy limit thermostat (part number 533901180) with a standard temperature range of 90–110°C and SPST switching. It is designed for Purwell, Purwell Classic and Purwell Lowline permanent pilot floor standing boilers. The limit thermostat acts as a safety cut-out, interrupting the burner circuit if the boiler overheats.

Signs this part needs replacing

  • Boiler repeatedly locks out or shuts down during operation.
  • Overheat fault code or warning displayed.
  • Boiler fails to fire or maintain temperature.
  • Limit thermostat does not reset or shows continuity when cold.
  • Erratic boiler cycling or intermittent heating.

Before you order

  • Check your boiler model against the fit list above.
  • Confirm the existing limit thermostat part number is 533901180.
  • Verify the temperature range and switch type match your boiler's requirements.
  • Ensure your boiler is a permanent pilot floor standing model.

Not sure which part?

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