OEM Lennox Draft Inducer Blower Motor — 72W43
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The genuine OEM Lennox 72W43 draft inducer blower motor turns the inducer fan that clears combustion gases from the heat exchanger and vents them safely through the flue. By creating the draft that closes the pressure switch, this motor enables your Lennox furnace to move into its ignition cycle. Engineered to exact Lennox factory specifications, the 72W43 provides the correct airflow and fit for a seamless replacement.
Common failure symptoms: When the 72W43 fails, homeowners often report no heat, a furnace that cycles the inducer but won't light, pressure-switch fault codes, grinding or humming noises, and an inducer wheel that struggles to spin up. These point to worn bearings, seized shafts, or open motor windings.
Why OEM matters: Lennox furnaces are tuned to a specific draft rate, and their safety circuits expect it. Substituting a generic motor can under-draft the system and trigger repeated lockouts or unsafe combustion. The authentic Lennox 72W43 guarantees factory-correct draft, a direct fit, and full compatibility with your Lennox equipment.
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