Navien
Navien Circulating Pump 30022230A
Circulating pump for Navien LCB 700 combi and system boilers, internal and external models.
At a glance
- Part type: circulating pump
- Appliance family: LCB 700 combi and system boilers
£229.92
£191.60 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 circulating pump is a Navien component used in LCB 700 combi and system boilers. It moves heated water around the primary circuit, maintaining flow through the boiler and the heating system. It is supplied as a single pump assembly for the LCB 700 range.
Signs this part needs replacing
- The boiler runs but the heating circuit does not circulate, leaving radiators cold while the boiler fires.
- The pump is noisy in operation, with grinding, humming or rumbling that does not clear after venting.
- Flow or temperature fault codes appear on the boiler display during a heating demand.
- The pump body is leaking from the gland or housing joints.
- The pump spindle is seized or stiff when checked by hand with the boiler isolated.
Before you order
- Confirm the boiler model and output from the data badge, as the LCB 700 is supplied in combi and system versions at 21KW, 28KW and 36KW.
- Check whether the appliance is the internal or external variant.
- Verify the existing pump part number against 30022230A before ordering.
- Isolate the electrical supply and the water connections before removing the pump.
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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