{"product_id":"carrier-ph11ja030000aaaa-capacitor-wl6uee","title":"OEM Carrier Dual Run + Start Capacitor Kit 45+7.5 MFD 370V — PH11JA030","description":"\u003ch1\u003eOEM Carrier Dual Run \u0026amp; Start Capacitor Kit for Model PH11JA030000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM capacitor kit includes both the \u003cstrong\u003edual run capacitor (P291-4573RS)\u003c\/strong\u003e and the \u003cstrong\u003estart capacitor (P281-8806)\u003c\/strong\u003e factory-specified for the \u003cstrong\u003eCarrier PH11JA030000AAAA\u003c\/strong\u003e heat pump system. The dual run capacitor continuously powers both the compressor and condenser fan motor during normal operation, while the start capacitor delivers the high-torque burst needed to get the compressor spinning on each cycle. When either fails, you'll notice classic symptoms: the unit hums but the compressor won't start, the system trips the breaker, or the outdoor unit short-cycles within the first few minutes of operation. Replacing both together is best practice — start capacitors often fail shortly after a run capacitor, and the labor cost is identical.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Run Capacitor Specs (P291-4573RS):\u003c\/strong\u003e 45+7.5 MFD (µF) | 370V rated | Round case | Compressor + condenser fan motor in one unit | Current successor: P291-4574RS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart Capacitor Specs (P281-8806):\u003c\/strong\u003e 88–108 MFD (µF) | 330V rated | Includes bleed resistor | Factory Totaline\/Carrier spec\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM capacitors are reliability-tested to 60,000 service hours per Carrier\/United Technologies parameters using high-grade metallized polypropylene film. Generic units typically run ±10% MFD tolerance versus OEM precision, accelerating compressor wear and voiding manufacturer warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always discharge capacitors before touching any terminals (stored charge can be lethal). Tools needed: 1\/4\" nut driver, insulated needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting. Verify MFD and voltage ratings against data plate before installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the OEM-specified capacitor kit for \u003cstrong\u003eCarrier model PH11JA030000AAAA\u003c\/strong\u003e. Also cross-references Carrier Bryant Payne platforms using P291-4573RS \/ P291-4574RS (dual run) and P281-8806 (start). Always verify µF ratings and voltage on your unit's data plate before ordering. Our technical team is available to confirm fitment — contact us before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641976312179,"sku":"CARRIE-PH11JA030000AAAA-CAPACITOR-P291-4573RS","price":40.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641976344947,"sku":"CARRIE-PH11JA030000AAAA-CAPACITOR-P291-4573RS-GEN","price":35.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-4573RS_aeef53d5-3943-4afc-b94a-e7c8c6467249.jpg?v=1775028531","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph11ja030000aaaa-capacitor-wl6uee","provider":"National HVAC Parts","version":"1.0","type":"link"}