Ferroli
Ferroli Sensor 10K NTC (Dry) 39806670
Ferroli 39806670 10K NTC dry temperature sensor for use in a range of Ferroli gas boilers.
At a glance
- Also known as N7704
£16.31
£13.59 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 Ferroli 39806670 is a 10K NTC temperature sensor supplied as a dry-type probe. It is used across a range of Ferroli gas boilers to report temperature back to the appliance's control board. The dry format means the sensor sits in a dry pocket rather than being immersed directly in the water circuit.
Signs this part needs replacing
- Boiler locks out or reports an overheat or sensor fault
- Flow or return temperature readings that are clearly wrong or erratic
- Domestic hot water temperature that fluctuates or runs hotter or colder than set
- Resistance reading that drifts outside the expected 10K NTC curve
- Faults that appear only once the appliance is hot, then clear when it cools
Before you order
- Confirm your boiler model and product code against the fitment list above
- Check whether your appliance uses a dry pocket sensor or an immersed type
- Inspect the sensor lead and plug connector for damage before ordering
- Check the fault code or resistance reading to confirm the sensor is at fault
Compliance
| GC number | 795-422 |
|---|---|
| Alternative numbers | FER39806670, N7704 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| FERROLI ARENA 20A - 30R0434/0 (01/05/2000) | — | — | — | |
| FERROLI ARENA 20C - 30R0424/0 (01/05/2000) | — | — | — | |
| FERROLI ARENA 30A - 30R0434/0 (01/05/2000) | 41-267-15 | 41-267-15 | — | — |
| FERROLI ARENA 30A - 30R0434/0 (01/05/2001) | 47-267-15 | 47-267-15 | — | — |
| FERROLI ARENA 30C - 30R0424/0 (01/05/2000) | 47-267-25 | 47-267-25 | — | — |
| FERROLI ARENA 30C - 30R0424/0 (01/05/2001) | 47-267-25 | 47-267-25 | — | — |
| FERROLI ECONCEPT 25A - 30K0058001 (01/12/2004) | — | — | — | |
| FERROLI ECONCEPT 35A - 30K0059001 (01/12/2004) | — | — | — | |
| FERROLI ECONCEPT 35C - 30K0077001 (01/12/2004) | — | — | — | |
| FERROLI ECONCEPT 50 A - 30R0590/0 | 41-267-24 | 41-267-24 | — | — |
Showing 10 of 40 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.
FERROLI appliance manual — ARENA 30A - 30R0434/0 (01/05/2000) (GC 41-267-15)
manualmanualFERROLI appliance manual — ARENA 30A - 30R0434/0 (01/05/2001) (GC 47-267-15)
manualmanualFERROLI appliance manual — ARENA 30C - 30R0424/0 (01/05/2000) (GC 47-267-25)
manualmanualFERROLI appliance manual — ARENA 30C - 30R0424/0 (01/05/2001) (GC 47-267-25)
manualmanualFERROLI appliance manual — ECONCEPT 50 A - 30R0590/0 (GC 41-267-24)
manualmanualFERROLI appliance manual — FERTECH 18 OV - 30K0846000 (GC 41-267-38)
manualmanualFERROLI appliance manual — FERTECH 25 OV - 30K0847000 (GC 41-267-39)
manualmanualFERROLI appliance manual — MAXIMA 35S - 30K0088000 (01/07/2004) (GC 47-267-21)
manualmanualFERROLI appliance manual — OPTIMAX 25C - 30K0086000 (01/07/2004) (GC 47-267-34)
manualmanualFERROLI appliance manual — OPTIMAX HE 18 OV - 30K0673000 (13/10/2008) (GC 41-267-28)
manualmanualFERROLI appliance manual — OPTIMAX HE PLUS 18 OV - 30K0673000 (13/10/2008) (GC 47-267-34), OPTIMAX HE PLUS 18 OV - 30K0673001 (04/03/2009) (GC 47-267-34), OPTIMAX HE PLUS 18 OV - 30K0673004 (01/11/2010) (GC 41-267-29)
manualmanualFERROLI appliance manual — OPTIMAX HE PLUS 25 OV - 30K0675000 (13/10/2008) (GC 47-267-30), OPTIMAX HE PLUS 25 OV - 30K0675004 (18/04/2011) (GC 47-267-30)
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