Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Halstead Overheat Thermostat 500578

Halstead

Halstead Overheat Thermostat 500578

At a glance

  • Part type: Overheat thermostat
  • Also known as HALSTEAD500578, 1292346
Manufacturer part no.
500578
GC number
379-958
Showing prices

£16.99

£14.16 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next 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 Halstead overheat thermostat (part number 500578) is a safety device designed to cut power to the boiler if it detects excessive temperature. It is used in Halstead Best series boilers to prevent overheating and potential damage. The thermostat is a metal component that mounts on the wall of the appliance.

Signs this part needs replacing

  • Boiler frequently locks out or shuts down unexpectedly.
  • Overheating or kettling noises from the boiler.
  • No response to demand for heating or hot water.
  • Error code indicating an overheat condition.
  • Visible damage or corrosion on the thermostat.

Before you order

  • Check the GC number and model of your appliance to ensure compatibility.
  • Confirm the alternative part number 1292346 matches your existing component.

Not sure which part?

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