OEM Lennox Draft Inducer Blower Motor — 18J93
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The genuine OEM Lennox 18J93 draft inducer blower motor powers the inducer fan that draws combustion products through the heat exchanger and vents them out the flue on compatible Lennox gas furnaces. By establishing negative pressure at startup, it closes the draft pressure switch and clears the way for safe ignition, making it a critical safety and performance component.
Common failure symptoms include the furnace humming without firing, loud rattling or squealing during the startup cycle, a pressure switch that won't close, repeated ignition lockouts, or complete loss of heat. These issues usually trace back to worn bearings, a burned-out winding, or a seized rotor in the 18J93 motor.
Why OEM matters: Lennox builds the 18J93 to exact speed, torque, and airflow tolerances calibrated to the furnace's venting and pressure-switch requirements. Choosing the factory OEM part ensures correct draft, dependable safety-switch operation, and quiet, long service life — advantages generic replacements rarely match. Restore your Lennox furnace to manufacturer specification with the authentic part.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days