{"product_id":"oem-lennox-dual-run-capacitor-99m81","title":"OEM Lennox Dual Run Capacitor — 99M81","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e99M81\u003c\/strong\u003e dual run capacitor is a critical electrical component in your Lennox condensing unit, providing the steady phase-shifted current that keeps both the compressor and the condenser fan motor running smoothly. A single dual capacitor serves two circuits, storing and releasing energy to maintain torque and efficiency during operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon symptoms of a failing capacitor:\u003c\/strong\u003e the outdoor fan won't start or spins slowly, a humming or clicking noise from the unit, the compressor struggles to start or trips the breaker, warm air from the vents, and short-cycling. A bulging or leaking capacitor top is a clear sign of failure and should be replaced immediately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The Lennox \u003cstrong\u003e99M81\u003c\/strong\u003e is matched to the exact microfarad (µF) and voltage ratings your system was designed for, ensuring reliable starts and protecting the compressor and fan motor from damage. Using a mismatched capacitor can cause overheating, weak starting torque, and premature motor burnout. Installing the factory-specified part restores rated performance and helps protect your Lennox warranty. Always discharge the old capacitor safely before servicing.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081090253171,"sku":"LNX-99M81","price":18.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-round-dual-LNX-99M81.jpg?v=1783760520","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-dual-run-capacitor-99m81","provider":"National HVAC Parts","version":"1.0","type":"link"}