Viessmann
Viessmann Sensor 3 (Boiler) 7450632
Viessmann Sensor 3 (Boiler), part number 7450632, for use with Vitotronic 200 and Vitotronic 300 control units.
At a glance
- Also known as 2321706
£98.56
£82.13 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 Viessmann SENSOR 3 (BOILER), part number 7450632, is a boiler sensor supplied for Viessmann Vitotronic control units. It sits in the boiler's sensing circuit and returns a signal to the Vitotronic controller so that it can regulate operation. It is listed for fitment against specific Vitotronic 200 and Vitotronic 300 serial numbers.
Signs this part needs replacing
- Boiler faults or lockouts traced by diagnostics to the sensor 3 circuit
- Flow or boiler temperature readings that are implausible, fixed or erratic at the controller
- Short cycling or unstable boiler operation that persists after other causes are ruled out
- Temperature displayed by the Vitotronic control unit disagreeing with readings taken at the pipework
Before you order
- Identify the Vitotronic control unit on the appliance and read its serial number
- Confirm that serial number matches one of the four listed above
- Check the fault history or diagnostics log for a sensor 3 fault before replacing
- Confirm the existing sensor is marked with part number 7450632
Compliance
| Alternative numbers | 2321706 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITOTRONIC 200 SERIAL No. 7187090 | — | — | — | |
| VIESSMANN VITOTRONIC 200 SERIAL No. 7450755 | — | — | — | |
| VIESSMANN VITOTRONIC 300 SERIAL No. 7187093 | — | — | — | |
| VIESSMANN VITOTRONIC 300 SERIAL No. 7450765 | — | — | — |
Documents & drawings
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No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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