{"product_id":"carrier-ph12na030000aaaa-capacitor-wl6uee","title":"OEM Carrier Dual Run + Start Capacitor Kit for PH12NA030000AAAA","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor \u0026amp; Start Capacitor Kit for Model PH12NA030000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM-matched capacitor kit includes both the \u003cstrong\u003eP291-4573RS Dual Run Capacitor\u003c\/strong\u003e and \u003cstrong\u003eP281-8806 Start Capacitor\u003c\/strong\u003e — the factory-specified pair for the \u003cstrong\u003eCarrier PH12NA030000AAAA\u003c\/strong\u003e heat pump. Together, these capacitors store and release the electrical charge required to start and sustain the compressor and condenser fan motor. When either fails, you'll experience symptoms such as a humming condenser that won't start, a compressor that short-cycles within minutes, or a complete failure to cool or heat. Replacing both at the same time is standard field practice — if one has failed, the other is under equal stress.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Run Capacitor Specs (P291-4573RS):\u003c\/strong\u003e 45 + 7.5 MFD (microfarad) | 370V rated | Round case | GE Genteq manufactured | Factory ±3% tolerance — powers both the compressor and condenser fan motor simultaneously.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart Capacitor Specs (P281-8806):\u003c\/strong\u003e 88–108 MFD | 330V rated | Includes integrated bleed resistor | Provides the high-torque starting boost the compressor needs under load — critical in hard-start or high-ambient-temperature conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM capacitors are manufactured to Carrier's exact factory tolerances and reliability parameters. Generic units often carry ±10% MFD variance, accelerating motor and compressor wear over time. Always match MFD and voltage ratings exactly — never substitute a lower voltage rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor fully before touching any terminals (use an insulated resistor or discharge tool). Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Swap one capacitor at a time to avoid miswiring. If in doubt, call a licensed HVAC technician.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM warranty. Ships same business day from our warehouse — order before 3PM for same-day dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This kit is factory-matched for the \u003cstrong\u003eCarrier PH12NA030000AAAA\u003c\/strong\u003e heat pump. Always verify the MFD and voltage ratings on your unit's data plate before ordering. Our team is available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641961369971,"sku":"CARRIE-PH12NA030000AAAA-CAPACITOR-P291-4573RS","price":40.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641961402739,"sku":"CARRIE-PH12NA030000AAAA-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_2bcda456-a0eb-4af0-899b-eafdca956811.jpg?v=1775028538","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na030000aaaa-capacitor-wl6uee","provider":"National HVAC Parts","version":"1.0","type":"link"}