{"product_id":"carrier-ph10ja018000aaaa-capacitor-suwq5e","title":"OEM Carrier Dual Run \u0026 Start Capacitor Kit for PH10JA018000AAAA","description":"\u003ch1\u003eOEM Carrier Dual Run \u0026amp; Start Capacitor Kit for Model PH10JA018000AAAA\u003c\/h1\u003e\u003cp\u003eThis factory-matched OEM capacitor kit contains both the \u003cstrong\u003eP291-2553RS Dual Run Capacitor\u003c\/strong\u003e and the \u003cstrong\u003eP281-1356 Start Capacitor\u003c\/strong\u003e — the two capacitors specified for the \u003cstrong\u003eCarrier PH10JA018000AAAA\u003c\/strong\u003e heat pump. The dual run capacitor keeps the compressor and condenser fan motor running continuously, while the start capacitor delivers the high-torque burst of energy needed to get the compressor spinning on every cycle. When either capacitor weakens or fails, you may experience hard-start faults, compressor humming with no motor movement, or the unit tripping on thermal overload shortly after startup. Replacing both as a kit ensures the entire capacitor circuit is restored to OEM specification in a single service call.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Run Capacitor Specs (P291-2553RS \/ superseded by P291-2554RS):\u003c\/strong\u003e 25+5 MFD (µF) | 370V AC | Round case | Rated for condenser outdoor motor circuits | Factory ±3% tolerance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart Capacitor Specs (P281-1356):\u003c\/strong\u003e 135–155 MFD (µF) | 330V AC | Round case | 2.56″ diameter × 4.37″ height | Includes bleed resistor for safe discharge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM capacitors are built to Carrier's exact factory tolerance and tested to meet their reliability standards. Generic aftermarket capacitors often carry ±10% MFD variance, which accelerates compressor wear, increases hard-start events, and can shorten overall system lifespan — particularly critical in heat pump applications that run year-round.\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 dedicated discharge tool). Tools needed: 1\/4″ nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Replace one capacitor at a time to avoid miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both components. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This kit is specified for the \u003cstrong\u003eCarrier PH10JA018000AAAA\u003c\/strong\u003e heat pump. Always verify MFD and voltage ratings on your unit's data plate before installation. Not sure it fits? Our HVAC parts team confirms fitment before you order — reach out before checkout.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642032902515,"sku":"CARRIE-PH10JA018000AAAA-CAPACITOR-P291-2553RS","price":80.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642032935283,"sku":"CARRIE-PH10JA018000AAAA-CAPACITOR-P291-2553RS-GEN","price":70.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-2553RS_570ac96d-01e3-4d60-8c1f-37af36aeae52.jpg?v=1775028464","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja018000aaaa-capacitor-suwq5e","provider":"National HVAC Parts","version":"1.0","type":"link"}