Navien
Navien Pipe S.H. Supply 30023439A
Navien S.H. supply pipe (30023439A) for LCB 700 combi boilers, 21KW, 28KW and 36KW internal and external models.
At a glance
- Appliance family: Navien LCB 700 combi
£142.81
£119.01 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 S.H. Supply pipe, part 30023439A, is a supply pipe for the secondary heating circuit within the Navien LCB 700 combi boiler. It forms part of the internal pipework that carries heated water through the appliance's secondary heat supply path. The part is manufactured by Navien for the LCB 700 combi range.
Signs this part needs replacing
- Visible weeping or water tracking around the pipe or its joints
- Corrosion, pitting or surface staining on the pipe wall
- Scale or debris build-up restricting flow through the pipe
- Kettling or unusual noise from the secondary heat circuit
- Reduced heating or hot water performance traced to the supply pipework
Before you order
- Confirm the appliance is a Navien LCB 700 combi boiler
- Check the output rating: 21KW, 28KW or 36KW
- Confirm whether the boiler is the internal or external variant
- Check the appliance serial number against the fitment list and match the part number 30023439A
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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