{"product_id":"oem-lennox-draft-inducer-blower-motor-33h45","title":"OEM Lennox Draft Inducer Blower Motor — 33H45","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e33H45\u003c\/strong\u003e draft inducer blower motor drives the inducer assembly that pulls combustion gases through the heat exchanger and pushes them safely out the vent. It creates the negative pressure the pressure switch needs to confirm before ignition, making it essential to both safe venting and reliable furnace startup. This motor runs at the start of every heat call, priming the system for a clean burn.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms\u003c\/strong\u003e include a loud humming, grinding, or rattling from the inducer, a furnace that won't ignite because the pressure switch never closes, intermittent no-heat calls, or pressure switch fault codes. Worn bearings, a seized motor, or reduced airflow are typical signs the \u003cstrong\u003e33H45\u003c\/strong\u003e is failing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The \u003cstrong\u003e33H45\u003c\/strong\u003e is matched to your Lennox furnace for the correct RPM, airflow, and mounting fit needed to satisfy the venting design and pressure switch calibration. A genuine factory motor ensures proper draft, quiet operation, and long service life. Generic replacements may move too much or too little air, causing nuisance lockouts or venting problems. Choose the OEM \u003cstrong\u003e33H45\u003c\/strong\u003e for a direct, trouble-free fit.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081109094771,"sku":"LNX-33H45","price":159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-draft-inducer-LNX-33H45.jpg?v=1783760164","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-draft-inducer-blower-motor-33h45","provider":"National HVAC Parts","version":"1.0","type":"link"}