Navien
Navien Fan Assembly Premix Blower 30030984A
Premix blower fan assembly for the Navien NCB300-28K Combi boiler.
At a glance
- Part type: fan assembly, premix blower
- Appliance family: NCB300-28K Combi
£139.28
£116.07 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 Fan Assembly Premix Blower is the combustion fan unit used on Navien NCB300-28K Combi boilers. It moves the air and gas mixture into the premix burner and drives the products of combustion out through the flue. It is supplied as a complete fan assembly.
Signs this part needs replacing
- Boiler locks out or fails to fire, with a fan-related fault code shown
- Fan runs noisily, with grinding, scraping or rumbling from the fan housing
- Fan does not spin up at the start of a demand, or spins intermittently
- Excessive vibration through the casing when the boiler is running
- Visible damage, contamination or stiffness when the fan is turned by hand
Before you order
- Confirm the appliance model is NCB300-28K Combi and check the serial number against the manufacturer's parts list
- Check the existing fan assembly part number matches 30030984A before ordering
- Inspect the flue, seals and wiring loom, as fan faults are sometimes caused by blockages or connection faults elsewhere
- Work on the combustion circuit must be carried out by a competent, registered engineer
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN NCB300-28K COMBI - (Serial Number 3710) | — | — | — | |
| NAVIEN NCB300-28K COMBI - (Serial Number 3710) | — | — | — |
Documents & drawings
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