{"product_id":"carrier-ph13nr018000acaa-capacitor-upzh37","title":"OEM Carrier Dual Run \u0026 Start Capacitor Kit for PH13NR018000ACAA","description":"\u003ch1\u003eOEM Carrier Dual Run \u0026amp; Start Capacitor Kit (P291-3553RS + P281-8806) for Model PH13NR018000ACAA\u003c\/h1\u003e\u003cp\u003eThis factory-matched OEM capacitor kit includes both the \u003cstrong\u003edual run capacitor (P291-3553RS)\u003c\/strong\u003e and the \u003cstrong\u003estart capacitor (P281-8806)\u003c\/strong\u003e specified for the \u003cstrong\u003eCarrier PH13NR018000ACAA\u003c\/strong\u003e split-system heat pump. The dual run capacitor continuously supports both the compressor and condenser fan motor during operation, while the start capacitor provides a powerful extra torque boost to reliably kick the compressor into motion on every cycle. When either capacitor fails, symptoms range from a humming unit that won't start, to a compressor that trips the breaker, short-cycles within minutes, or fails to cool or heat entirely — leaving you with a fully non-functional system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Run Capacitor Specs (P291-3553RS):\u003c\/strong\u003e 35+5 MFD (microfarad) | 370V rated | Round style | Terminals: HERM–C–FAN | Factory ±3% tolerance | Manufactured by GE\/Genteq for Carrier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart Capacitor Specs (P281-8806):\u003c\/strong\u003e 88–108 MFD | 330V rated | With bleed resistor | 2.06\" diameter | Cycles on the compressor at startup to prevent hard-start burnout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e These are genuine Carrier-sourced OEM capacitors built to exact factory tolerances. Generic aftermarket alternatives commonly run ±10% MFD drift, which accelerates compressor wear, increases amp draw, and can void equipment warranties. Replacing both capacitors together as a kit is best practice and maximizes system longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always discharge capacitors before handling — they store lethal voltage even with power off. Tools needed: 1\/4\" nut driver, insulated needle-nose pliers, multimeter (capacitance mode). Photograph all wiring before disconnecting. Start cap typically mounts near the contactor; run cap mounts in the outdoor unit's control section.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both capacitors. Orders placed by 3 PM local time ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This kit is engineered for the \u003cstrong\u003eCarrier PH13NR018000ACAA\u003c\/strong\u003e heat pump condenser. Always verify the MFD and voltage ratings on your unit's data plate before ordering — using a capacitor with incorrect MFD will damage the compressor. Cross-references include HC98JA036D, HC98CA036, HC95DD088, and HC95DE088. Need fitment confirmed before you order? Our HVAC parts specialists verify compatibility at no charge — contact us today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641895735667,"sku":"CARRIE-PH13NR018000ACAA-CAPACITOR-P291-3553RS","price":70.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641895768435,"sku":"CARRIE-PH13NR018000ACAA-CAPACITOR-P291-3553RS-GEN","price":61.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-3553RS_12666eb8-8a6e-467e-865f-ca6ae2854ec1.jpg?v=1775028492","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nr018000acaa-capacitor-upzh37","provider":"National HVAC Parts","version":"1.0","type":"link"}