{"product_id":"carrier-ha1cjx018000aaaa-capacitor-suwq5e","title":"OEM Carrier Dual Run \u0026 Start Capacitor Kit for HA1CJX018000AAAA","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor \u0026amp; Start Capacitor for Model HA1CJX018000AAAA\u003c\/h1\u003e\u003cp\u003eThese OEM-matched capacitors — dual run capacitor \u003cstrong\u003eP291-2553RS\u003c\/strong\u003e and start capacitor \u003cstrong\u003eP281-1356\u003c\/strong\u003e — are the factory-specified replacements for the \u003cstrong\u003eCarrier HA1CJX018000AAAA\u003c\/strong\u003e air handler\/condensing unit. Capacitors store and deliver the electrical surge needed to start and sustain the compressor and fan motors during each cooling cycle. A failing dual run capacitor typically causes a loud hum with no motor movement, intermittent short-cycling, or a compressor that trips on thermal overload. A failed start capacitor results in hard-starting or failure to start under load, especially on hot days when line voltage sags.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Dual Run Capacitor P291-2553RS — Round case, 440V rated, factory-matched ±3% MFD tolerance; Start Capacitor P281-1356 — High-capacitance short-duty rated, matched to compressor start winding requirements for the HA1CJX018000AAAA platform\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM capacitors are manufactured to exact Carrier factory tolerances. Aftermarket units commonly ship at ±10% MFD variance, which accelerates motor winding stress, shortens compressor life, and can void equipment warranties — especially relevant on 18,000 BTU single-zone systems running at or near continuous duty in summer peak loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always discharge capacitors fully before handling (use a 20,000-ohm resistor or insulated screwdriver across terminals). Tools needed: 1\/4\" nut driver, needle-nose pliers, insulated screwdrivers, multimeter with capacitance mode. Photograph all wiring connections before removal. Label HERM, FAN, and C terminals before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before 3 PM local time ship same business day from our climate-controlled warehouse. Capacitors are individually tested and bagged with terminal labels included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e These capacitors are specified for the \u003cstrong\u003eCarrier HA1CJX018000AAAA\u003c\/strong\u003e 18,000 BTU system. Always verify the MFD rating and voltage stamped on your existing capacitor's data label before ordering — MFD values vary within model families based on compressor lot and production run. Our fitment team is available to cross-reference your existing part numbers before you order. In stock and ready to ship today — get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909358473587,"sku":"CARRIE-HA1CJX018000AAAA-CAPACITOR-P291-2553RS","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909358506355,"sku":"CARRIE-HA1CJX018000AAAA-CAPACITOR-P291-2553RS-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-P291-2553RS_cb837963-e978-4a07-afa2-05e4f57aec3d.jpg?v=1782915485","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ha1cjx018000aaaa-capacitor-suwq5e","provider":"National HVAC Parts","version":"1.0","type":"link"}