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Ariston Thermocouple 564961

Ariston

Ariston Thermocouple 564961

Thermocouple for Ariston STYX SX 20 M and STYX SX 20 MFF gas boilers from serial number 92010000.

At a glance

  • Also known as 1572276
Manufacturer part no.
564961
Showing prices

£11.46

£9.55 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 Ariston 564961 is a thermocouple for Ariston gas boilers. A thermocouple is a flame-sensing safety device that holds the gas valve open while a pilot flame is present, and closes it if the flame goes out. This part is listed for the Ariston STYX SX 20 M and STYX SX 20 MFF boilers from serial number 92010000 onwards.

Signs this part needs replacing

  • The pilot flame goes out when the control knob is released
  • The boiler fails to stay lit after ignition
  • Repeated lockouts or flame failure faults
  • Intermittent shutdowns while the boiler is running

Before you order

  • Confirm your boiler is an Ariston STYX SX 20 M or STYX SX 20 MFF
  • Check the serial number is 92010000 or higher
  • Verify the part number 564961 matches the thermocouple being replaced
  • Inspect the thermocouple connection and electrode condition before fitting

Not sure which part?

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