Vaillant
Vaillant Sensor 0020127210
Vaillant sensor 0020127210 for geoTHERM VWL 45/1, 65/1 and 75/1 A 230V heat pumps.
At a glance
- Part type: sensor
- Appliance family: geoTHERM VWL air-to-water heat pumps
- Also known as 1385185
£144.19
£120.16 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, part number 0020127210, used on geoTHERM VWL air-to-water heat pump units. It forms part of the appliance's monitoring circuit, feeding a measurement signal back to the control system. It is listed by the manufacturer for the VWL 45/1, 65/1 and 75/1 A 230V models.
Signs this part needs replacing
- Fault codes logged by the heat pump control board pointing to a sensor circuit
- Readings from the sensor that are erratic, frozen or clearly outside expected values
- The appliance cycling, locking out or failing to run through its normal sequence
- Heating or hot water output that no longer responds correctly to demand
- Intermittent faults that appear and clear as the sensor or its wiring warms up
Before you order
- Confirm the appliance model number on the data plate matches one of the fit lines above
- Check the part number 0020127210 against the manufacturer's parts list for your unit
- Identify the sensor position on your appliance and check the connector type and lead length against the failed part
- Check whether more than one sensor of this type is fitted, in case more than one unit is required
Compliance
| Alternative numbers | 1385185 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VWL 45/1 A 230V | — | — | — | |
| VAILLANT VWL 65/1 A 230V | — | — | — | |
| VAILLANT VWL 75/1 A 230V | — | — | — | |
| VAILLANT geoTHERM VWL 45/1 A 230V | — | — | — | |
| VAILLANT geoTHERM VWL 65/1 A 230V | — | — | — | |
| VAILLANT geoTHERM VWL 75/1 A 230V | — | — | — | |
| VAILLANT geoTHERM VWL 75/1 A 230V | — | — | — |
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.
No 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.