Navien
Navien Flame Holder LCB700 30021071D
Navien flame holder part 30021071D for LCB 700 Combi, Regular and System boilers, supplied as listed.
£98.62
£82.18 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 Flame Holder LCB700 (part number 30021071D) is a blast tube classed as a boiler part, supplied by Navien for the LCB 700 range of boilers.
Signs this part needs replacing
- The flame looks lifted, unstable or uneven at the burner
- A yellow or sooty flame appears in place of a steady flame
- The boiler fails to ignite or repeatedly attempts ignition
- Rumbling, popping or noisy combustion
- An ignition-related fault code is displayed (check the appliance manual for the code meaning)
Before you order
- Check the model and serial number against the fits list, as the LCB 700 COMBI EXTERNAL 21KW is listed with Serial Number 1705 and serial numbers differ between variants.
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 36 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.
No technical questions yet for this part.
Not sure which part?
Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.