Vaillant
Vaillant NTC Sensor 0020045972
NTC thermistor sensor, Vaillant part 0020045972, used across ecoCRAFT VKK and Ecotec VU boiler ranges.
At a glance
- Part type: NTC sensor (thermistor)
- Also known as 1381516
£22.51
£18.76 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 Vaillant 0020045972 is an NTC thermistor sensor used on Vaillant gas boilers, including the ecoCRAFT VKK and Ecotec VU ranges. It provides temperature feedback to the boiler's control system so flow, return or storage temperatures can be monitored and regulated. It is listed under the thermistor category in Vaillant gas boiler spares.
Signs this part needs replacing
- Boiler locks out or shows a temperature sensor fault code
- Flow or return temperature readings are inaccurate or implausible
- Hot water or heating temperature fluctuates erratically
- Boiler short-cycles because it misreads system temperature
- Sensor resistance measured with a multimeter falls outside the expected range for the ambient temperature
Before you order
- Confirm your appliance model against the fitment list above
- Check the part number on the existing sensor matches 0020045972
- Check the connector and lead arrangement on the existing sensor matches the replacement
- Isolate the electrical supply to the boiler before removing or fitting the sensor
Compliance
| Barcode / EAN | 4024074527900 |
|---|---|
| Alternative numbers | 1381516 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT PUMP UNIT VPM 15 D | — | — | — | |
| VAILLANT PUMP UNIT VPM 30 D | — | — | — | |
| VAILLANT VKK 2006/3-E R1 | — | — | — | |
| VAILLANT VKK 2806/3-E R1 | — | — | — | |
| VAILLANT VKK 806/3-E R1 | — | — | — | |
| VAILLANT VPM 15 D | — | — | — | |
| VAILLANT VPM 30 D | — | — | — | |
| VAILLANT VU 466/4-5 | 41-044-58 | 41-044-58 | — | — |
| VAILLANT VU 656/4-5 | 41-044-59 | 41-044-59 | — | — |
| VAILLANT VU 806/5-5 R4 | 41-044-68 | 41-044-68 | — | — |
Showing 10 of 41 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.
VAILLANT appliance manual — VKK 2006/3-E R1, VKK 2806/3-E R1, VKK 806/3-E R1, ecoCRAFT VKK 2006/3-E R1 (2012), ecoCRAFT VKK 2806/3-E R1 (2012), ecoCRAFT VKK 806/3-E R1 (2012)
manualmanualVAILLANT appliance manual — VU 466/4-5 (GC 41-044-58), VU 656/4-5 (GC 41-044-59), ecoTEC VU 466/4-5 (2007-2015) (GC 41-044-58), ecoTEC VU 656/4-5 (2007-2015) (GC 41-044-59)
manualmanualVAILLANT appliance manual — VU 806/5-5 R4 (GC 41-044-68), VU GB 1006/5-5 R2 (GC 41-044-69), VU GB 1006/5-5 R3 (GC 41-044-69), VU GB 1206/5-5 R2 (GC 41-044-70), VU GB 1206/5-5 R3 (GC 41-044-70), VU GB 806/5-5 R2 (GC 41-044-68), VU GB 806/5-5 R3 (GC 41-044-68), ecoTEC VU 806/5-5 R4 (2017) (GC 41-044-68), ecoTEC VU GB 1006/5-5 R2 (2013-2014) (GC 41-044-69), ecoTEC VU GB 1006/5-5 R3 (2014) (GC 41-044-69), ecoTEC VU GB 1206/5-5 R2 (2013-2014) (GC 41-044-70), ecoTEC VU GB 1206/5-5 R3 (2014) (GC 41-044-70), ecoTEC VU GB 806/5-5 R2 (2013-2014) (GC 41-044-68), ecoTEC VU GB 806/5-5 R3 (2014) (GC 41-044-68)
manualmanualVAILLANT appliance manual — ecoCRAFT VKK 1206/3-E (2008-2012), ecoCRAFT VKK 1606/3-E (2008-2012), ecoCRAFT VKK 2006/3-E (2008-2012), ecoCRAFT VKK 2406/3-E (2008-2012), ecoCRAFT VKK 2806/3-E (2008-2012), ecoCRAFT VKK 806/3-E (2008-2012)
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