Navien
Navien Circulation Pipe 30023511A
Circulation pipe, part 30023511A, for Navien LCB 700 Combi Internal 21KW and 28KW boilers.
At a glance
- Part type: circulation pipe
- Appliance family: LCB 700 Combi Internal
£18.19
£15.16 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 circulation pipe is a Navien component for the LCB 700 Combi Internal boiler range. It forms part of the appliance's internal water circuit, carrying water around the boiler. It is supplied under Navien part number 30023511A.
Signs this part needs replacing
- Visible water weeping or damp staining 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
- Overheating or poor circulation performance traced to a blocked or restricted pipe
- Noise from the boiler circuit consistent with reduced flow
Before you order
- Confirm the boiler model is an LCB 700 Combi Internal 21KW or 28KW
- Check the serial number against the appliance data badge before ordering
- Inspect the existing pipe and connections to confirm the fault lies with this component
- Verify the part number 30023511A matches the number on the component being replaced
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| 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) | — | — | — |
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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