{"product_id":"carrier-hb1ajx048000aaaa-capacitor-wojspw","title":"OEM Carrier Dual Run Capacitor P291-4074RS for HB1AJX048000AAAA","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor P291-4074RS for Model HB1AJX048000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM dual run capacitor (part number \u003cstrong\u003eP291-4074RS\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier HB1AJX048000AAAA\u003c\/strong\u003e split-system condenser. The dual run capacitor provides the starting torque and continuous run support for both the compressor and condenser fan motor simultaneously. When this component fails, common symptoms include a loud humming with no motor movement, the compressor attempting to start and tripping on thermal overload, or the condenser fan spinning slowly or not at all — all of which result in warm air and system shutdown.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM part number P291-4074RS | Dual run configuration | 370V\/440V rated | Round case design | Factory-matched MFD tolerance within ±3% for reliable motor protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine OEM Carrier capacitor, manufactured to exact factory tolerances. Aftermarket alternatives commonly drift ±10% MFD, increasing stress on the compressor and condenser fan motor windings and shortening overall system lifespan.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor fully before handling terminals. Recommended tools: 1\/4\" nut driver, needle-nose pliers, insulated screwdriver, and a multimeter to verify discharge. Photograph all wiring connections before removal to ensure correct reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Backed by a 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our stocked warehouse — no waiting on backorders.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eHB1AJX048000AAAA\u003c\/strong\u003e 4-ton split-system condenser. Always confirm the MFD rating and voltage printed on your existing capacitor's label or unit data plate before ordering to ensure a direct fit. Have questions about compatibility? Our HVAC parts specialists are available to verify fitment before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909350543731,"sku":"CARRIE-HB1AJX048000AAAA-CAPACITOR-P291-4074RS","price":24.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909350576499,"sku":"CARRIE-HB1AJX048000AAAA-CAPACITOR-P291-4074RS-GEN","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-round-dual-P291-4074RS.jpg?v=1782916041","url":"https:\/\/nationalhvacparts.com\/products\/carrier-hb1ajx048000aaaa-capacitor-wojspw","provider":"National HVAC Parts","version":"1.0","type":"link"}