{"product_id":"oem-lennox-contactor-10f74","title":"OEM Lennox Contactor — 10F74","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e10F74\u003c\/strong\u003e contactor is the electrically operated switch that energizes the compressor and condenser fan motor in your Lennox outdoor unit. When the thermostat calls for cooling, the 24-volt control circuit pulls in the contactor coil, closing the high-voltage contacts that deliver line power to start the compressor. It cycles thousands of times per season, making it one of the most wear-prone parts in the system.\u003c\/p\u003e\u003cp\u003eA failing \u003cstrong\u003e10F74\u003c\/strong\u003e is a leading cause of no-cool calls. Look for pitted, burned, or welded contacts, a loud buzzing or chattering at the unit, a compressor and fan that won't start (or won't shut off), or visible arcing and melted housing. Ants and debris lodged in the contacts are also a common cause of intermittent operation.\u003c\/p\u003e\u003cp\u003eOEM matters because the contactor must match the correct coil voltage, pole configuration, and contact amperage rating for your Lennox unit's compressor load. An undersized or mismatched replacement can weld shut or fail prematurely under the inrush current. This factory-spec \u003cstrong\u003e10F74\u003c\/strong\u003e ensures a proper electrical match and dependable, safe switching.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081089007987,"sku":"LNX-10F74","price":28.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-2pole-LNX-10F74.jpg?v=1783759911","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-contactor-10f74","provider":"National HVAC Parts","version":"1.0","type":"link"}