Navien
Navien Fan Assembly Premix Blower 30017200A
Premix blower fan assembly for Navien NCB-CE 28KW and 34KW ERP boilers.
At a glance
- Part type: fan assembly, premix blower
£155.63
£129.69 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 premix blower fan assembly is the combustion air fan used on NCB-CE ERP series boilers. It draws the gas and air mixture into the premix burner and maintains the correct combustion airflow across the modulating range. The assembly is supplied as a complete fan unit for direct mounting on the appliance.
Signs this part needs replacing
- Boiler locks out or fails to ignite, with a fan or airflow related fault code logged
- Whining, screeching or rumbling noise from the fan area during or after ignition
- Fan runs intermittently, at reduced speed, or not at all on a call for heat
- Combustion readings drift or the appliance will not stay lit through the modulation range
- Visible damage, sooting or stiffness when the fan is rotated by hand
Before you order
- Confirm the boiler model and ERP variant against the data badge
- Check the existing fan assembly part number before ordering
- Inspect the fan mounting gasket and flue connections for condition
- Confirm the appliance is isolated from gas and power before fitting
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN NCB-CE 28KW SYSTEM BOILER ERP - (Serial Number 6664) | — | — | — | |
| NAVIEN NCB-CE 28KW SYSTEM BOILER ERP - (Serial Number 6664) | — | — | — | |
| NAVIEN NCB-CE 34KW COMBINATION BOILER ERP - (Serial Number 0130) | — | — | — | |
| NAVIEN NCB-CE 34KW COMBINATION BOILER ERP - (Serial Number 0130) | — | — | — | |
| NAVIEN NCB-CE 34KW COMBINATION BOILER ERP - (Serial Number 2572) | — | — | — | |
| NAVIEN NCB-CE 34KW COMBINATION BOILER ERP - (Serial Number 2572) | — | — | — |
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.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.