The Viessmann 7823839 Radial Fan is a genuine replacement airflow component engineered for combustion systems requiring a radial blower, such as the RG130 WB1A configuration. This fan is designed to draw the correct volume of air into the combustion chamber and efficiently expel flue gases through the flue system, supporting stable ignition, efficient combustion and consistent heat output. A properly functioning radial fan helps maintain correct draft conditions; if it becomes worn, noisy or fails, symptoms like ignition faults, loss of performance or safety lockouts can occur, making timely replacement essential.

This radial fan is compatible with Viessmann appliances that specify part number 7823839 and the RG130 WB1A radial blower setup in their parts documentation. To ensure correct fitment and reliable operation, always confirm the part number on your existing fan or consult your boiler or burner’s service information before installation, as blower types and electrical connections vary between models and configurations.

Supplied ready for direct replacement, the Viessmann 7823839 Radial Fan integrates with the original mounting points, ducting and electrical connections without modification when installed by a qualified engineer. Choosing this genuine Viessmann component helps restore proper combustion airflow, improve ignition reliability and support dependable heating performance in compatible systems.