Navien30008834A – Fan Motor Assembly FB-1K050 – 120V Blower for NCB and NPE Series

The Navien 30008834A Fan Motor Assembly (FB-1K050) is a genuine OEM replacement blower designed for use in Navien NCB, NCB-E, and select NPE series tankless water heaters. Operating on 120V at 60Hz, this component plays a critical role in maintaining proper airflow through the combustion chamber, supporting efficient heat exchange and safe operation.

This factory-assembled unit includes both the fan and motor. It ensures optimal air circulation to prevent overheating, improve fuel combustion, and maintain the high-efficiency performance expected from Navien’s condensing units. Regular replacement of a worn blower helps restore peak operation and extend system life.

Specifications:

• Part Number: 30008834A (FB-1K050)
• Voltage: 120V / 60Hz
• Dimensions: 6″ L x 8.14″ W x 6.89″ H
• Weight: 3.95 lbs
• Application: Air circulation and combustion support

Applications:

• NCB and NCB-E series
• NPE-180S, 180A, 210S, 210A, 240S, 240A series tankless water heaters

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