{"product_id":"oem-lennox-contactor-w-auxiliary-switch-48g57","title":"OEM Lennox Contactor w\/ Auxiliary Switch — 48G57","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e48G57\u003c\/strong\u003e contactor with auxiliary switch is the heavy-duty relay that switches line voltage to the compressor and condenser fan motor in your Lennox air conditioner or heat pump. Energized by the low-voltage control circuit, its contacts close to start the outdoor unit, while the built-in auxiliary switch supplies the extra pole your Lennox system uses for correct component sequencing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e As the \u003cstrong\u003e48G57\u003c\/strong\u003e ages, you may notice pitted or blackened contacts, a loud buzzing or chattering coil, or contacts that stick closed and keep the compressor running nonstop. A failed contactor can also leave the outdoor unit completely dead on a cooling call or cause erratic, intermittent operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The authentic Lennox \u003cstrong\u003e48G57\u003c\/strong\u003e matches the precise coil voltage, contact rating, and auxiliary-switch layout your equipment was designed for. Off-brand substitutes frequently miss the correct auxiliary contacts or amperage rating, resulting in control errors and early failure. OEM ensures reliable engagement and safeguards your costly compressor.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081104802163,"sku":"LNX-48G57","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-48G57.jpg?v=1783759904","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-contactor-w-auxiliary-switch-48g57","provider":"National HVAC Parts","version":"1.0","type":"link"}