Navien
Navien Flow Adjust Valve 30008247A
Navien flow adjust valve for LCB 700 Combi external and internal boiler models.
At a glance
- Appliance family: LCB 700 Combi
£111.43
£92.86 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 flow adjust valve is a Navien component used on LCB 700 Combi boilers. It regulates the flow rate through the appliance circuit, allowing the water flow to be set and balanced as part of commissioning or service work. The part carries the manufacturer reference 30008247A.
Signs this part needs replacing
- Flow rate cannot be set or adjusted at the valve
- Heating or hot water performance varies despite the valve being set
- The adjuster turns loosely or is seized and will not move
- Water weeping or dripping from the valve body or adjuster spindle
Before you order
- Confirm the appliance is a Navien LCB 700 Combi model
- Check whether the installation is the external or internal variant
- Verify the part number 30008247A against the existing valve
- Isolate and drain the relevant circuit before removal
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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