{"product_id":"carrier-ph2ppb042000aa-capacitor-42n4o5","title":"OEM Carrier Single Run Capacitor 15 MFD 370V for PH2PPB042000AA","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor 15 MFD 370V for Model PH2PPB042000AA\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM single run capacitor for the \u003cstrong\u003eCarrier PH2PPB042000AA\u003c\/strong\u003e heat pump system, carrying OEM part number \u003cstrong\u003eP291-1503\u003c\/strong\u003e (superseded by P291-1504). The run capacitor provides the continuous phase-shifted current required to keep the compressor motor running efficiently after start-up. When this capacitor degrades or fails, you'll typically experience symptoms such as a humming condenser with no compressor start, intermittent hard-starting, increased amp draw, or a complete no-cool condition as the compressor trips on thermal overload.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 15 MFD (microfarad) | 370V rated | Oval case form factor | ±5% factory tolerance | OEM part# P291-1503 \/ P291-1504\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM Carrier capacitor is manufactured to exact factory tolerances, ensuring proper compressor motor protection and longevity. Generic capacitors often carry a wider ±10% MFD tolerance, which can accelerate motor wear, reduce efficiency, and shorten compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor fully before handling any terminals (use an insulated resistor or discharge tool). Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter (to verify MFD before installation). Photograph all wiring connections before disconnecting the old unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse when ordered by 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct OEM replacement for \u003cstrong\u003eCarrier model PH2PPB042000AA\u003c\/strong\u003e heat pump systems. Always verify the MFD rating and voltage specification on your unit's data plate before ordering. Note that P291-1503 has been superseded by P291-1504 (upgraded to 440V) — both are fully compatible replacements. Our fitment team is available to confirm compatibility before you order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641449369971,"sku":"CARRIE-PH2PPB042000AA-CAPACITOR-P291-1503","price":28.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641449402739,"sku":"CARRIE-PH2PPB042000AA-CAPACITOR-P291-1503-GEN","price":25.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-1503_25439f31-48c6-4d4f-a1ad-256e7a8fdac1.jpg?v=1775038868","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph2ppb042000aa-capacitor-42n4o5","provider":"National HVAC Parts","version":"1.0","type":"link"}