Navien
Navien Wire Harness Sensor 30023250A
Sensor wire harness for Navien LCB 700 Combi boilers in 21kW, 28kW and 36kW internal and external variants.
At a glance
- Part type: wire harness; sensor
- Appliance family: LCB 700 Combi
£73.92
£61.60 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 Navien wire harness for the sensor is a wiring loom used on Navien LCB 700 Combi boilers. It carries the sensor signal between the sensor and the boiler's control circuitry. The part is listed under Navien product code 30023250A.
Signs this part needs replacing
- Intermittent sensor readings or repeated sensor-related fault codes
- Cracked, chafed or brittle insulation along the harness
- Corroded, loose or discoloured connector terminals at either end
- Scorching or heat damage around the plug or cable entry
- Boiler behaviour that changes when the harness is moved or reseated
Before you order
- Confirm your appliance is an LCB 700 Combi and check whether it is the internal or external variant
- Check the kW rating of your unit against the fit list
- Compare the connector type and plug layout on the existing harness with the part being ordered
- Isolate the power supply before removing or fitting any wiring
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN LCB 700 COMBI EXTERNAL 21KW (Serial Number 1705) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 21KW (Serial Number 1705) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 28KW (Serial Number 1710) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 28KW (Serial Number 1710) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 36KW (Serial Number 1709) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 36KW (Serial Number 1709) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 21KW (Serial Number 1704) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 21KW (Serial Number 1704) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 28KW (Serial Number 1706) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 28KW (Serial Number 1706) | — | — | — |
Showing 10 of 12 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.
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