Navien
Navien Fan Damper 30008825A
Navien fan damper, part number 30008825A, for LCB 700, NCB-CE and NPE appliance families.
At a glance
- Part type: fan damper
Showing prices
£6.88
£5.73 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Navien fan damper, part number 30008825A, is a flue-side component fitted to Navien gas appliances. It regulates airflow through the fan and flue path, helping to maintain stable combustion across the appliance's operating range. It is listed for the LCB 700, NCB-CE and NPE families.
Signs this part needs replacing
- Combustion readings drifting outside the manufacturer's stated tolerances
- Boiler locking out or failing to establish a stable flame
- Whistling, humming or rattling from the fan or flue area
- Visible damage, distortion or sticking of the damper flap
- Soot deposits or condensation around the fan and flue assembly
Before you order
- Confirm your appliance model and serial number against the fitment list above
- Check whether your appliance is the internal or external variant where applicable
- Inspect the existing damper and its mounting to confirm the part matches
- Refer to the manufacturer's parts list for your exact model if in doubt
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 66 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
NAVIEN appliance manual — LCB 700 COMBI EXTERNAL 21KW (Serial Number 1705), LCB 700 COMBI EXTERNAL 28KW (Serial Number 1710), LCB 700 COMBI EXTERNAL 36KW (Serial Number 1709), LCB 700 COMBI INTERNAL 21KW (Serial Number 1704), LCB 700 COMBI INTERNAL 28KW (Serial Number 1706), LCB 700 COMBI INTERNAL 36KW (Serial Number 1708), LCB 700 REGULAR EXTERNAL 21KW (Serial Number 1474), LCB 700 REGULAR EXTERNAL 28KW (Serial Number 1478), LCB 700 REGULAR EXTERNAL 36KW (Serial Number 1482), LCB 700 REGULAR INTERNAL 21KW (Serial Number 1472), LCB 700 REGULAR INTERNAL 28KW (Serial Number 1477), LCB 700 REGULAR INTERNAL 36KW (Serial Number 1481), LCB 700 SYSTEM EXTERNAL 21KW (Serial Number 1471), LCB 700 SYSTEM EXTERNAL 28KW (Serial Number 1476), LCB 700 SYSTEM EXTERNAL 36KW (Serial Number 1480), LCB 700 SYSTEM INTERNAL 21KW (Serial Number 1434), LCB 700 SYSTEM INTERNAL 28KW (Serial Number 1475), LCB 700 SYSTEM INTERNAL 36KW (Serial Number 1479)
manualmanualNAVIEN appliance manual — NCB-CE 20KW SYSTEM BOILER ERP - (Serial Number 6662), NCB-CE 23KW SYSTEM BOILER ERP - (Serial Number 6663), NCB-CE 24KW COMBINATION BOILER ERP - (Serial Number 0128), NCB-CE 24KW COMBINATION BOILER ERP - (Serial Number 2570), NCB-CE 28KW COMBINATION BOILER ERP - (Serial Number 0129), NCB-CE 28KW COMBINATION BOILER ERP - (Serial Number 2571), NCB-CE 28KW SYSTEM BOILER ERP - (Serial Number 6664), NCB-CE 33KW SYSTEM BOILER ERP - (Serial Number 6665), NCB-CE 34KW COMBINATION BOILER ERP - (Serial Number 0130), NCB-CE 34KW COMBINATION BOILER ERP - (Serial Number 2572), NCB-CE 40KW COMBINATION BOILER ERP - (Serial Number 0131)
manualmanualNAVIEN appliance manual — NPE-AWE CE-24A - (Serial Number 5093), NPE-AWE CE-32A - (Serial Number 5095), NPE-SWE CE-24S - (Serial Number 5094), NPE-SWE CE-32S - (Serial Number 5096)
manualNo technical questions yet for this part.
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