Viessmann
Viessmann Vitodens 300/333 radial fan RLS154 26kW 7831035
Combustion air radial fan for the 26kW Viessmann Vitodens 300-W and 333-F/333-W boilers.
At a glance
- Also known as 2321088
- Have the replacement fitted by a Gas Safe registered engineer
£831.88
£693.23 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 7831035 is the RLS154 radial fan fitted to the 26kW versions of Viessmann's Vitodens 300 and 333 range. It draws air into the burner for combustion and supports correct flue gas extraction.
Signs this part needs replacing
- Fan is noisy, grinding or vibrating when running
- Boiler locks out on a fan or airflow fault
- Fan runs on but the boiler will not fire
- Reduced heat output alongside unusual fan behaviour
Before you order
- Confirm your exact model, kW rating and serial number
- Match the part number printed on your existing fan
- Isolate electrical power and gas before removal
- Have the replacement fitted by a Gas Safe registered engineer
Compliance
| Alternative numbers | 2321088 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITODENS 333-F WS3A SERIAL No. 7190614 | 47-819-07 | 47-819-07 | — | — |
| VIESSMANN VITODENS WB3A COMBI 26KW | — | — | — | |
| VIESSMANN VITODENS WB3A COMBI 26KW SERIAL No. 7176538 | — | — | — | |
| VIESSMANN VITODENS WB3A SYSTEM 26KW | — | — | — | |
| VIESSMANN VITODENS WB3A SYSTEM 26KW SERIAL No. 7176537 | — | — | — |
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.
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.