Vaillant
Vaillant Sensor 0020019838
Vaillant thermistor sensor 0020019838 for Ecocraft VKK gas boilers.
At a glance
- Also known as 4024074504291, VAILLANT0020019838, 1379826
£0.01
£0.01 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
This is a Vaillant sensor (thermistor) with part number 0020019838. It is a temperature-sensing component used within the Ecocraft VKK range of gas boilers. The thermistor feeds temperature data back to the boiler's control system so that firing and modulation can be managed correctly.
Signs this part needs replacing
- Boiler locks out or fails to ignite, with a sensor-related fault code displayed
- Erratic or inaccurate temperature readings from the appliance
- Domestic hot water temperature fluctuates or runs consistently hot or cold
- Sensor resistance does not match the manufacturer's temperature/resistance table when tested
- Intermittent boiler operation that clears after the sensor or its connection is disturbed
Before you order
- Confirm the appliance model matches one of the Ecocraft VKK models listed above.
- Check the existing sensor's part number and connector type against this item.
- Isolate the boiler from the electrical supply before fitting.
- Verify whether the fault lies with the sensor, its wiring or the control board before ordering.
Compliance
| Barcode / EAN | 4024074504291 |
|---|---|
| Alternative numbers | 4024074504291, VAILLANT0020019838, VAILLANT0020019838, 1379826 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT ecoCRAFT VKK 1206/2-E (2006-2009) | — | — | — | |
| VAILLANT ecoCRAFT VKK 1606/2-E (2006-2009) | — | — | — | |
| VAILLANT ecoCRAFT VKK 2006/2-E (2006-2009) | — | — | — | |
| VAILLANT ecoCRAFT VKK 2406/2-E (2006-2009) | — | — | — | |
| VAILLANT ecoCRAFT VKK 2806/2-E (2006-2009) | — | — | — | |
| VAILLANT ecoCRAFT VKK 806/2-E (2006-2009) | — | — | — |
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.
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