OEM Lennox Draft Inducer Motor Assembly — 33W32
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The genuine OEM Lennox 33W32 draft inducer motor assembly pulls combustion gases through the heat exchanger and safely vents them out of the flue. By establishing proper draft before ignition, it allows the pressure switch to close and the furnace to fire, making it a critical safety and performance component in compatible Lennox gas furnaces.
Common failure symptoms: A worn or failing inducer often produces loud humming, grinding, or rattling noises, fails to start, or spins slowly due to worn bearings. Because the pressure switch depends on the inducer establishing draft, a bad motor commonly triggers no-heat lockouts, short cycling, or repeated ignition failures.
Why OEM matters: The 33W32 assembly is matched to the exact airflow, RPM, and mounting geometry your Lennox furnace requires. Genuine OEM ensures the pressure switch trips at the correct draft level and that combustion venting meets factory safety standards — something universal replacements cannot reliably guarantee. Choosing the original part protects both reliable heating and safe operation.
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