Viessmann 100-W WB1HA Radial Fan NRG 118 30/35 7861605

Description

The Viessmann 100-W WB1HA Radial Fan NRG 118 30/35 7861605 is a genuine brand-new replacement radial fan designed for selected Viessmann Vitodens 100-W boilers. Supplied under manufacturer part number 7861605, this radial fan comes with a 12-month warranty. Before ordering, always confirm your boiler model, GC number, serial number and manufacturer part number to ensure compatibility.

The radial fan supplies the correct volume of air to the burner, helping maintain safe combustion and efficient boiler operation. A faulty fan may cause ignition problems, boiler lockouts or poor heating performance. As it forms part of the boiler’s combustion system, installation and testing should be carried out by a suitably qualified Gas Safe registered engineer.

Product Details

Brand: Viessmann
Part Type: Radial Fan
MPN: 7861605
Warranty: 12 Months
Condition: Genuine Brand New

Boiler Compatibility

The Viessmann 100-W WB1HA Radial Fan NRG 118 30/35 7861605 is compatible with the following boilers:

Fits Appliance GC No.
100-W WB1HA 30kW System ErP (Serial No. 7543423) 41-819-38
100-W WB1HA 35kW System ErP (Serial No. 7543425) 41-819-39
100-W WB1C 30kW Combi (Serial No. 7441745) Information not provided

Before ordering, please check your boiler model, GC number, serial number and Viessmann manufacturer part number 7861605 to ensure this is the correct replacement part for your appliance.

Delivery & Collection

Collection is available from our Newcastle showroom at Unit 5, Penn Street, Newcastle upon Tyne, NE4 7BG, subject to stock availability. We also offer fast UK delivery via 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

1. Is the Viessmann 7861605 radial fan compatible with my boiler?

This radial fan is compatible with the listed Viessmann Vitodens 100-W WB1HA and WB1C boilers. Always confirm your boiler model, serial number, GC number and manufacturer part number before ordering.

2. What does the radial fan do?

The radial fan supplies the correct airflow to the burner, ensuring efficient combustion and safe boiler operation.

3. What symptoms may indicate a faulty radial fan?

Common symptoms include ignition failure, boiler lockouts, fan-related fault codes, unusual fan noise or the boiler failing to start. These symptoms may also be caused by other components.

4. How do I confirm that 7861605 is the correct replacement part?

Check your boiler model, serial number and confirm that Viessmann manufacturer part number 7861605 matches your existing fan or the official Viessmann parts information.

5. Does this product come with a warranty?

Yes. This genuine brand-new Viessmann radial fan is supplied with a 12-month warranty.