Ariston
Ariston NTC DHW Thermistor 65121175
NTC thermistor probe for DHW temperature sensing in Ariston CLAS and Genus HE boilers, part number 65121175.
At a glance
- Also known as SENSOR-NTC, 1579450
£18.90
£15.75 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Ariston 65121175 is an NTC thermistor probe used to measure domestic hot water temperature in Ariston CLAS and Genus HE boilers. It reports water temperature to the boiler control board as a resistance value, allowing the appliance to regulate DHW delivery and flag sensor faults.
Signs this part needs replacing
- No hot water or intermittent hot water delivery
- Boiler lockout or fault code relating to the DHW sensor
- DHW temperature at the tap fluctuating or reading inaccurately
- Resistance reading outside the manufacturer's expected curve when tested
- Corrosion, cracking or damaged wiring at the probe
Before you order
- Confirm your boiler model and GC number against the fitment list above
- Check the fault is the sensor itself, not the wiring loom or control board
- Compare the connector and probe body with the component being removed
- Isolate the electrical supply and water before fitting
Compliance
| Alternative numbers | SENSOR-NTC, 1579450 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON ARISTON CLAS 24 FF | — | — | — | |
| ARISTON ARISTON CLAS 28 FF | — | — | — | |
| ARISTON ARISTON CLAS 28 FF SYSTEM | — | — | — | |
| ARISTON ARISTON CLAS HE 24 FF | — | — | — | |
| ARISTON ARISTON CLAS HE 30 FF | — | — | — | |
| ARISTON ARISTON CLAS HE 38 FF | — | — | — | |
| ARISTON CLAS 24 FF NG (IE) EDITION 3 (MAR 2008) | 47-116-59 | 47-116-59 | — | — |
| ARISTON CLAS 28 FF NG (IE) EDITION 3 (MAR 2008) | 47-116-61 | 47-116-61 | — | — |
| ARISTON CLAS 28 FF SYSTEM NG (IE) EDITION 3 (MAR 2008) | 41-116-28 | 41-116-28 | — | — |
| ARISTON CLAS HE 24 FF NG UK (MAY 2007) | 47-116-51 | 47-116-51 | — | — |
Showing 10 of 15 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
ARISTON appliance manual — CLAS 24 FF NG (IE) EDITION 3 (MAR 2008) (GC 47-116-59), CLAS 28 FF NG (IE) EDITION 3 (MAR 2008) (GC 47-116-61), CLAS 28 FF SYSTEM NG (IE) EDITION 3 (MAR 2008) (GC 41-116-28), CLAS HE 24 FF NG UK (MAY 2007) (GC 47-116-51), CLAS HE 30 FF NG UK (MAY 2007) (GC 47-116-52), CLAS HE 38 FF NG UK (MAY 2007) (GC 47-116-53)
manualmanualARISTON appliance manual — GENUS HE 24 FF NG UK (APRIL 2007) (GC 47-116-54), GENUS HE 30 FF NG UK (MAY 2007) (GC 47-116-55), GENUS HE 38 FF NG UK (MAY 2007) (GC 47-116-56)
manualNo technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.