Vaillant
Vaillant Sensor 0020143502
Vaillant 0020143502 thermistor sensor for ecoTEC VU series gas boilers, used to monitor temperature and feed back to the control system.
At a glance
- Appliance family: ecoTEC VU
- Also known as 1385948
£54.59
£45.49 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 0020143502 is a sensor (thermistor) used in Vaillant ecoTEC VU series gas boilers. It monitors temperature within the appliance and provides feedback to the boiler's control system. This component is listed under thermistor spares for the ecoTEC VU range.
Signs this part needs replacing
- Boiler lockouts or failure to fire
- Temperature readings that do not match actual system temperature
- Erratic heating or hot water performance
- Intermittent shutdowns during operation
- Resistance readings outside the manufacturer's specified range when tested
Before you order
- Confirm your boiler model and GC number against the fitment list above
- Check the part number 0020143502 matches the component you are replacing
- Inspect the sensor connections and mounting point for damage or corrosion
- If unsure, consult the manufacturer's parts list for your specific appliance
Compliance
| Barcode / EAN | 4024074668276 |
|---|---|
| Alternative numbers | 1385948 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VU 446/5-5 | 41-694-28 | 41-694-28 | — | — |
| VAILLANT VU 606/5-5 | 41-694-29 | 41-694-29 | — | — |
| VAILLANT VU 806/5-5 R4 | 41-044-68 | 41-044-68 | — | — |
| VAILLANT VU GB 1006/5-5 R2 | 41-044-69 | 41-044-69 | — | — |
| VAILLANT VU GB 1006/5-5 R3 | 41-044-69 | 41-044-69 | — | — |
| VAILLANT VU GB 1206/5-5 R2 | 41-044-70 | 41-044-70 | — | — |
| VAILLANT VU GB 1206/5-5 R3 | 41-044-70 | 41-044-70 | — | — |
| VAILLANT VU GB 806/5-5 R2 | 41-044-68 | 41-044-68 | — | — |
| VAILLANT VU GB 806/5-5 R3 | 41-044-68 | 41-044-68 | — | — |
| VAILLANT ecoTEC VU 446/5-5 (2018) | 41-694-28 | 41-694-28 | — | — |
Showing 10 of 22 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 — VU 446/5-5 (GC 41-694-28), VU 606/5-5 (GC 41-694-29), ecoTEC VU 446/5-5 (2018) (GC 41-694-28), ecoTEC VU 606/5-5 (2018) (GC 41-694-29)
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)
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