Viessmann
Viessmann Buffer Temperature Sensor NTC 10K 7834379
Viessmann NTC 10K temperature sensor, part 7834379, for DHW and immersion sensing on Vitodens and Vitocrossal appliances.
At a glance
- Also known as 2321232
£116.26
£96.88 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 5 (DHW, IMMERSION NTC) is an NTC 10K temperature sensor, manufacturer part number 7834379. It is used to measure domestic hot water and immersion cylinder temperatures across a range of Viessmann gas boiler and storage combi appliances. The sensor provides the temperature feedback the control needs to regulate hot water production and cylinder charging.
Signs this part needs replacing
- Domestic hot water temperature reads inaccurately or fluctuates at the tap
- Cylinder or storage combi fails to reach its set hot water temperature
- Boiler short-cycles or holds a high firing rate during hot water demand
- Fault codes relating to the DHW or cylinder temperature sensor appear on the control
- Intermittent hot water delivery with no other obvious cause
Before you order
- Confirm the appliance model and serial number against the fit list above
- Check the fault diagnosis points to the DHW or immersion sensor, not a different sensor on the appliance
- Verify the sensor connector and lead match the item being removed
- Isolate electrical power and depressurise the DHW circuit before removal where required
Compliance
| Alternative numbers | 2321232 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITOCROSSAL 300 CU3A 26 SERIAL No. 7553000 | — | — | — | |
| VIESSMANN VITOCROSSAL 300 CU3A 35 SERIAL No. 7553001 | — | — | — | |
| VIESSMANN VITOCROSSAL 300 CU3A 45 SERIAL No. 7553002 | — | — | — | |
| VIESSMANN VITOCROSSAL 300 CU3A 57 SERIAL No. 7553003 | — | — | — | |
| VIESSMANN VITODENS 111-W B1LA 26 KW STORAGE COMBI SERIAL No. 7499484 | 47-819-24 | 47-819-24 | — | — |
| VIESSMANN VITODENS 111-W B1LA 35KW STORAGE COMBI SERIAL No. 7499485 | 47-819-25 | 47-819-25 | — | — |
| VIESSMANN VITODENS 111-W B1LB 26 KW GB ERP SERIAL No. 7543448 | 47-819-36 | 47-819-36 | — | — |
| VIESSMANN VITODENS 111-W B1LB 35 KW GB ERP SERIAL No. 7543449 | 47-819-37 | 47-819-37 | — | — |
| VIESSMANN VITODENS 111-W B1LD 26 KW GB SERIAL No. 7570732 | 47-819-43 | 47-819-43 | — | — |
| VIESSMANN VITODENS 111-W B1LD 35 KW GB SERIAL No. 7570733 | 47-819-44 | 47-819-44 | — | — |
Showing 10 of 30 compatible appliances.
Documents & drawings
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