Potterton
Potterton Sensor 40mm 5142392
40mm thermistor sensor for Potterton Commercial Sirius 2 and Sirius 3 gas boilers, part number 5142392.
£27.60
£23.00 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 Potterton 5142392 is a 40mm thermistor sensor used on Potterton Commercial Sirius 2 and Sirius 3 gas boilers. It measures temperature within the appliance and passes that reading to the boiler control system so firing and modulation can be managed correctly. The sensor has a length of 40mm.
Signs this part needs replacing
- The boiler locks out or fails to fire with a temperature-related fault
- Temperature readings become erratic or inaccurate
- The appliance overheats or cycles more frequently than normal
- Hot water or flow temperature is unstable despite correct settings
Before you order
- Confirm the appliance model appears in the Fits list above
- Check the existing sensor length is 40mm
- Locate the part number 5142392 on the component where it is marked
- Confirm whether the boiler is a Sirius 2 or Sirius 3 unit
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS110 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS90 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 WH110 (FROM APRIL 2016) | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 WH90 (FROM APRIL 2016) | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS110 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS130 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS150 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS90 | — | — | — |
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.
POTTERTON COMMERCIAL appliance manual — SIRIUS 2 FS110, SIRIUS 2 FS90
manualmanualPOTTERTON COMMERCIAL appliance manual — SIRIUS 2 WH110 (FROM APRIL 2016), SIRIUS 2 WH90 (FROM APRIL 2016)
manualmanualPOTTERTON COMMERCIAL appliance manual — SIRIUS 3 FS110, SIRIUS 3 FS90
manualmanualPOTTERTON COMMERCIAL appliance manual — SIRIUS 3 FS130, SIRIUS 3 FS150
manualNo technical questions yet for this part.
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