Navien
Navien UV Sensor 20051966A
UV sensor for Navien LCB 700 combi, regular and system boilers, part number 20051966A.
At a glance
- Part type: UV sensor
- Appliance family: Navien LCB 700
£29.15
£24.29 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 UV sensor 20051966A is a flame detection component used in Navien LCB 700 boilers. It monitors ultraviolet light from the burner flame and provides a signal to the boiler control. It is listed for LCB 700 combi, regular and system models.
Signs this part needs replacing
- Boiler locks out or fails to ignite despite a call for heat.
- Flame detection fault or UV sensor error shown on the control.
- Burner lights then shuts down shortly after start-up.
- Intermittent operation or repeated ignition attempts.
- No flame signal registered by the boiler control.
Before you order
- Confirm the appliance is a Navien LCB 700 model.
- Check the model and serial number against the fitment list.
- Confirm the existing sensor is marked 20051966A.
- If unsure, check the manufacturer's parts list for the appliance.
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) | — | — | — |
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Documents & drawings
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