Description
The Viessmann 7833759 Radial Fan NRG118-CVI is a brand-new genuine replacement component designed for selected Viessmann Vitodens 100-W WB1B boilers. Supplied with a 12-month warranty, this radial fan is suitable for compatible Heat Only, Combi, System and Compact models after confirming the correct part number and appliance details.
The radial fan supplies the airflow required for efficient combustion, helping the boiler operate safely and effectively. Boiler components should always be installed by a suitably qualified Gas Safe registered engineer.
Product Details
Brand: Viessmann
Part Type: Radial Fan
Manufacturer Part Number (MPN): 7833759
Condition: Brand New
Warranty: 12 Months
Boiler Compatibility
Viessmann Vitodens 100-W WB1B Heat Only
13kW Heat Only – GC No. 41-819-21
16kW Heat Only – GC No. 41-819-22
19kW Heat Only – GC No. 41-819-23
26kW Heat Only – GC No. 41-819-24
35kW Heat Only – GC No. 41-819-25
Viessmann Vitodens 100-W WB1B Combi
26kW Combi (Serial No. 7373061) – GC No. 47-819-12
30kW Combi (Serial No. 7373063) – GC No. 47-819-13
35kW Combi (Serial No. 7373065) – GC No. 47-819-14
Viessmann Vitodens 100-W WB1B System
26kW System (Serial No. 7373060) – GC No. 41-819-18
30kW System (Serial No. 7373062) – GC No. 41-819-19
35kW System (Serial No. 7373064) – GC No. 41-819-20
Viessmann Vitodens 100-W WB1B Compact
13kW Compact (Serial No. 7416307)
16kW Compact (Serial No. 7416302)
19kW Compact (Serial No. 7416303)
26kW Compact (Serial No. 7416304)
Delivery & Collection
Collection is available from our Newcastle showroom at Unit 5, Penn Street, Newcastle upon Tyne, NE4 7BG, usually on the same day, subject to stock availability. If the item is not in stock, collection is normally available the next working day. We also offer fast UK delivery through Royal Mail First Class or DPD Next Day, with most orders arriving within one to two working days.
Boiler components should be installed by a suitably qualified Gas Safe registered engineer.
Warranty
This brand-new genuine Viessmann boiler radial fan is supplied with a 12-month warranty. Warranty claims may be subject to inspection and confirmation that the component was correctly selected and professionally installed.
Returns
We accept returns within 30 days of delivery. The product must be unused, unfitted and returned in its original unopened packaging with all seals intact. We cannot accept returns for components that have been fitted, used, damaged or returned in an unsuitable condition. Please check the boiler model, GC number, edition, serial-number range and part number carefully before ordering.
If you need any help, our team is happy to assist. Please contact us by phone or WhatsApp chat.
Frequently Asked Questions
Is this radial fan compatible with my Viessmann boiler?
This radial fan is compatible only with the Viessmann Vitodens 100-W WB1B models listed in the compatibility section. Always confirm your boiler model, serial number and part number before ordering.
How can I confirm that 7833759 is the correct replacement part?
Check the existing manufacturer’s part number on your current fan and verify it against your boiler model, serial number and GC number where applicable. Contact us if you need assistance confirming compatibility.
What symptoms may indicate a faulty radial fan?
Common symptoms can include ignition problems, unusual fan noise, boiler lockouts or poor combustion performance. These symptoms do not necessarily confirm that the radial fan is faulty, and the appliance should be diagnosed by a qualified engineer before replacing any components.
Does this radial fan relate to any boiler fault codes?
Boiler fault codes can have several possible causes and should not be used alone to diagnose a faulty radial fan. Always carry out the correct diagnostic procedures before replacing components.
Does this component require professional installation?
Yes. This radial fan should be installed by a suitably qualified Gas Safe registered engineer to ensure the boiler operates safely and correctly.
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