{"product_id":"carrier-ha1cjx048000aaaa-capacitor-ykzw07","title":"OEM Carrier Dual Run \u0026 Start Capacitor Kit for HA1CJX048000AAAA","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor \u0026amp; Start Capacitor for Model HA1CJX048000AAAA\u003c\/h1\u003e\u003cp\u003eThese OEM replacement capacitors — dual run capacitor \u003cstrong\u003eP291-5054RS\u003c\/strong\u003e and start capacitor \u003cstrong\u003eP281-8806\u003c\/strong\u003e — are the factory-specified components for the \u003cstrong\u003eCarrier HA1CJX048000AAAA\u003c\/strong\u003e 4-ton split-system condenser. Capacitors store and release the electrical charge required to start and run the compressor and condenser fan motor. A failing dual run capacitor typically produces a humming sound with no motor movement, intermittent short-cycling, or a compressor that trips on thermal overload. A failing start capacitor causes hard-start conditions where the compressor struggles to spin up or fails to start entirely under load, often tripping the breaker.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e P291-5054RS — Dual Run Capacitor, 440V rated, round case, factory-matched ±3% MFD tolerance | P281-8806 — Start Capacitor, designed for hard-start assist on the HA1CJX048000AAAA compressor circuit. Always verify MFD and voltage ratings on your unit's data plate before installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM capacitors from Carrier are manufactured to exact factory tolerances. Aftermarket generics commonly run ±10% MFD deviation, which accelerates compressor and fan motor wear, reduces efficiency, and can void equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Capacitors retain a dangerous charge even after power is disconnected. Always discharge the capacitor using an insulated resistor before touching any terminals. Tools needed: 1\/4\" nut driver, insulated needle-nose pliers, multimeter (capacitance setting). Photograph all wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e Backed by a 1-year OEM factory warranty. Ships same business day from our climate-controlled parts warehouse. Orders placed before 3 PM EST leave today.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This capacitor set is matched to the \u003cstrong\u003eCarrier HA1CJX048000AAAA\u003c\/strong\u003e 4-ton condensing unit (048 = 4-ton nominal). Confirm OEM part numbers P291-5054RS and P281-8806 against your existing components or unit data plate before ordering. Our HVAC parts specialists are available to verify fitment — contact us before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909354148211,"sku":"CARRIE-HA1CJX048000AAAA-CAPACITOR-P291-5054RS","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909354180979,"sku":"CARRIE-HA1CJX048000AAAA-CAPACITOR-P291-5054RS-GEN","price":21.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-start-P291-5054RS_52a24421-069c-4b78-b344-55774520f14a.jpg?v=1782915495","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ha1cjx048000aaaa-capacitor-ykzw07","provider":"National HVAC Parts","version":"1.0","type":"link"}