{"product_id":"carrier-yac3680yac106-capacitor-42ll7k","title":"OEM Carrier Single Run Capacitor P291-3504 for YAC3680YAC106","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor P291-3504 for Model YAC3680YAC106\u003c\/h1\u003e\u003cp\u003eThis OEM single run capacitor (part number \u003cstrong\u003eP291-3504\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier YAC3680YAC106\u003c\/strong\u003e split-system air conditioner. A single run capacitor provides the continuous electrical charge needed to keep either the compressor \u003cem\u003eor\u003c\/em\u003e the condenser fan motor running at peak efficiency throughout each cooling cycle. When this capacitor begins to fail, you'll commonly experience symptoms such as a loud humming with no motor movement, intermittent hard starting, a tripped breaker, or a system that short-cycles and shuts down within minutes of startup.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Single run capacitor | Factory-matched MFD and voltage rating | Round or oval case (factory original) | Meets OEM ±3% microfarad tolerance for precise motor protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier part, manufactured to exact factory specifications. Generic alternatives commonly carry a ±10% MFD tolerance, which places added thermal stress on the motor windings and can significantly shorten compressor or fan motor service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor fully before handling any terminals. Recommended tools: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, and a multimeter capable of MFD measurement. Photograph all wiring connections before disconnecting the old capacitor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Backed by a 1-year OEM factory warranty. In-stock units ship same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the \u003cstrong\u003eCarrier YAC3680YAC106\u003c\/strong\u003e condenser unit. Always verify the MFD and voltage ratings on your unit's data plate before ordering to confirm fitment. Not sure? Our HVAC parts specialists are available to verify compatibility before you complete your purchase — get it right the first time and avoid costly return shipping.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640197173619,"sku":"CARRIE-YAC3680YAC106-CAPACITOR-P291-3504","price":52.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640197206387,"sku":"CARRIE-YAC3680YAC106-CAPACITOR-P291-3504-GEN","price":46.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-3504_6db452a8-08b3-4a5a-881e-d126fd2a466d.jpg?v=1775039845","url":"https:\/\/nationalhvacparts.com\/products\/carrier-yac3680yac106-capacitor-42ll7k","provider":"National HVAC Parts","version":"1.0","type":"link"}