Vaillant
Vaillant Fan 0020073800
Vaillant fan assembly, part 0020073800, a replacement combustion fan for Vaillant gas boilers; check your model and GC number before ordering.
At a glance
- Part type: Fan assembly
- Also known as 0020020008, 1375068, N0177
£202.20
£168.50 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 Vaillant 0020073800 is a fan assembly supplied by Vaillant for use in its gas boilers. The fan draws combustion air into the burner and pushes flue products out through the flue system, so it sits at the centre of the appliance's safe combustion and flue path. It is a serviceable component, replaced when the existing fan becomes noisy, seizes or fails to prove airflow to the boiler's control board.
Signs this part needs replacing
- Boiler locks out or fails to fire, often with a fan or flue-related fault code on the display
- Grinding, whining or rumbling noise from the fan area during or after ignition
- Fan impeller stiff to turn by hand, or the motor does not spin up when the boiler calls for heat
- Repeated lockouts that clear temporarily after the boiler is reset
- Visible damage, sooting or debris build-up on the impeller or housing
Before you order
- Check the boiler's GC number and data badge against the part you are replacing, as Vaillant used more than one fan across its ranges
- Compare the number on the existing fan with 0020073800, 1375068 or N0177 to confirm the match
- Inspect the fan gasket and any sealing washers on removal, as these are usually replaced at the same time
Mechanical
| Part type | Fan assembly |
|---|
Compliance
| Manufacturer part number (MPN) | 0020073800 |
|---|---|
| Barcode / EAN | 4024074507032 |
| Alternative numbers | 0020020008, 1375068, N0177 |
No fitment data held for this part.
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 documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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