{"product_id":"carrier-ph12na018000aaaa-capacitor-suwq5e","title":"OEM Carrier Dual Run \u0026 Start Capacitor Kit for PH12NA018000AAAA","description":"\u003ch1\u003eOEM Carrier Dual Run \u0026amp; Start Capacitor Kit — P291-2553RS + P281-1896S for PH12NA018000AAAA\u003c\/h1\u003e\u003cp\u003eThis factory-matched OEM capacitor kit includes both the \u003cstrong\u003edual run capacitor (P291-2553RS)\u003c\/strong\u003e and the \u003cstrong\u003estart capacitor (P281-1896S)\u003c\/strong\u003e specified for the \u003cstrong\u003eCarrier PH12NA018000AAAA\u003c\/strong\u003e heat pump. The dual run capacitor continuously powers both the compressor and condenser fan motor, while the start capacitor delivers the short-duration high-torque boost needed to get the compressor spinning under load. When either fails, symptoms range from a humming outdoor unit that won't start, to hard-start trips, nuisance breaker faults, or a compressor that runs briefly then shuts down on thermal overload. Replacing both together is the industry-standard practice — if one has failed, the other is under stress.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Run Capacitor Specs (P291-2553RS):\u003c\/strong\u003e 25+5 MFD (microfarad) | 370 VAC | Round case | ±3% OEM tolerance | Replaces HC98JA026, HC98CA026, HC98CA025, P291-2553R, GE 97F9803\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart Capacitor Specs (P281-1896S):\u003c\/strong\u003e 189–227 MFD | 330 VAC | Round case | 50\/60 Hz | Replaces 092A189B330CE7X, P2811896S — provides the hard-start current surge to protect compressor windings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM capacitors are manufactured to exact factory MFD tolerances (±3%), ensuring proper motor starting torque and run characteristics. Off-brand capacitors commonly ship at ±10% tolerance, accelerating compressor wear and voiding manufacturer warranty on newer units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always discharge capacitors fully before handling (use a 20kΩ resistor or insulated discharge tool). Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter with capacitance mode. Photograph all wiring before disconnecting. Verify MFD and voltage ratings on the unit data plate before installing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both components. Orders ship same business day from our warehouse when placed before 3PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This kit is the factory-specified replacement for \u003cstrong\u003eCarrier PH12NA018000AAAA\u003c\/strong\u003e 1.5-ton heat pump condensers. Both capacitors should be verified against your unit's data plate — confirm 25+5 MFD\/370V for the dual run and 189–227 MFD\/330V for the start capacitor before installation. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you order — contact us before purchasing if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641973231987,"sku":"CARRIE-PH12NA018000AAAA-CAPACITOR-P291-2553RS","price":47.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641973264755,"sku":"CARRIE-PH12NA018000AAAA-CAPACITOR-P291-2553RS-GEN","price":41.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-2553RS_c38ed0e5-39ee-4ef0-8a0f-a90e2632be9e.jpg?v=1775028484","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na018000aaaa-capacitor-suwq5e","provider":"National HVAC Parts","version":"1.0","type":"link"}