Fan impeller De Dietrich 7731621

The fan impeller is the rotating part of the fan assembly that moves air through the heating system. Typically made of durable materials like plastic or metal, the impeller is designed to work with the fan motor to create the necessary airflow for combustion and ventilation. Over time, impellers can become cracked, unbalanced, or worn, leading to noise, vibration, and reduced efficiency. Replacing the fan impeller can restore proper airflow and quiet operation. Ensure compatibility with your fan motor and housing for a successful repair.