Navien
Navien Pipe S.H. Return 30023533A
Navien secondary heating return pipe, part number 30023533A, for LCB 700 Combi External boilers.
At a glance
- Part type: pipe, secondary heating (S.H.) return
£23.40
£19.50 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 Pipe S.H. Return (part number 30023533A) is a pipe component for the secondary heating circuit of Navien LCB 700 Combi External boilers. It forms part of the return side of the secondary heating loop within the appliance. It is a manufacturer part specific to the LCB 700 Combi External range.
Signs this part needs replacing
- Visible weeping or leakage from the pipe or its joints
- Corrosion, pitting or surface deterioration on the pipe
- Scale or debris build-up restricting flow through the return
- Damp staining or water marks along the pipe run
- Reduced heating performance or unusual noise traced to the return circuit
Before you order
- Confirm your boiler is an LCB 700 Combi External model
- Check the output rating against the 21KW, 28KW or 36KW variants listed
- Verify the part number 30023533A against the manufacturer's parts list for your appliance
- Confirm the fault is on the secondary heating return side before ordering
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) | — | — | — |
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.
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