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Ariston Boiler Thermistor Temperature Sensor 65122300

Ariston

Ariston Boiler Thermistor Temperature Sensor 65122300

Ariston 65122300 thermistor temperature sensor for CLAS Premium EVO System and Genus ONE System boilers.

At a glance

  • Also known as 1578180
Manufacturer part no.
65122300
Showing prices

£53.74

£44.78 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 65122300 is a thermistor temperature sensor used on Ariston gas boilers. It provides the control board with a resistance-based temperature reading so the appliance can regulate heating and domestic hot water accurately. It is fitted across the CLAS Premium EVO System and Genus ONE System ranges.

Signs this part needs replacing

  • Boiler locks out or fails to fire, with a temperature-related fault code logged
  • Heating or hot water temperature reads incorrectly on the display
  • Domestic hot water temperature fluctuates or runs hot and cold
  • Radiators reach temperature erratically despite correct settings
  • Intermittent shutdowns once the appliance has warmed up

Before you order

  • Confirm your appliance model appears in the fits list above
  • Check the part number marked on the existing sensor against 65122300
  • Inspect the sensor lead and connector for damage before fitting
  • If your model is not listed, check it against the manufacturer's parts list

Not sure which part?

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