Wayne Combustion 21427-SER Blower Wheel 320788-702 Contractors should look for vibration

Contractors should look for vibration in the blower housing

The 48 NEMA frame size and band mount design ensure a standard fit into existing blower housings

making it an essential component for condenser fan cycling control and high-pressure safety monitoring

it serves as the direct cross of B1340004 and B1340020 part numbers

Fast Response Time: Pilot-operated diaphragm design allows for quick opening and closing of larger orifices

Wayne Combustion 21427-SER Blower Wheel 320788-702 Contractors should look for vibrationWayne Combustion 21427 SER Blower Wheel 3. 44"W x 4. 25" OD STD is an OEM combustion air component used in Wayne burner assemblies to maintain proper airflow and stable fuel ignition. This standard size blower wheel is engineered for balanced air delivery, helping the burner achieve the correct air to fuel ratio for efficient combustion and consistent flame performance. Contractors typically replace this part during burner servicing when airflow