{"product_id":"carrier-ph12na042000acaa-capacitor-yg9lc7","title":"OEM Carrier Dual Run Capacitor 55+7.5 MFD 370V — PH12NA042000ACAA","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor 55+7.5 MFD 370V for Model PH12NA042000ACAA\u003c\/h1\u003e\u003cp\u003eThis OEM dual run capacitor (Carrier part# \u003cstrong\u003eP291-5573RS\u003c\/strong\u003e, also sold with start capacitor \u003cstrong\u003eP281-8806\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH12NA042000ACAA\u003c\/strong\u003e heat pump condenser. The dual run capacitor stores and delivers the electrical charge required to start and sustain both the compressor and the condenser fan motor simultaneously. When this capacitor weakens or fails, symptoms include a loud hum with no compressor startup, a condenser fan that won't spin, or the system short-cycling within the first few minutes of operation — leaving your home without cooling or heating.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 55+7.5 MFD (microfarad) | 370V rated | Round case | ±6% factory tolerance | 50\/60 Hz | UL approved current interrupter | No-PCB castor oil protected | AFC: 10,000 | Can height: 3¾\" | Diameter: 2½\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is an OEM Totaline\/Carrier-sourced capacitor meeting exact factory tolerance of ±6%. Generic aftermarket capacitors commonly run ±10% MFD tolerance, which accelerates compressor wear, shortens motor life, and can void equipment warranties. Always match MFD and voltage exactly to your unit's data plate.\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: ¼\" nut driver, needle-nose pliers, multimeter set to capacitance mode. Photograph all wiring connections before disconnecting. Replace the start capacitor P281-8806 at the same time if your unit is equipped — both components age together.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse. Note: Carrier sources its capacitors from select OEM manufacturers — labeling on the capacitor body will reflect the manufacturer's name, not Carrier.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM fit for Carrier model \u003cstrong\u003ePH12NA042000ACAA\u003c\/strong\u003e heat pump condensing unit. Verify the 55+7.5 MFD and 370V rating against your unit's data plate before ordering — voltage must match or exceed the original rating. Frequently replaced alongside start capacitor \u003cstrong\u003eP281-8806\u003c\/strong\u003e (88–108 MFD, 330V). Questions about fitment? Our HVAC specialists verify compatibility before you order — same-day response guaranteed.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641952194931,"sku":"CARRIE-PH12NA042000ACAA-CAPACITOR-P291-5573RS","price":35.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641952227699,"sku":"CARRIE-PH12NA042000ACAA-CAPACITOR-P291-5573RS-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-5573RS_382708e8-d853-45c9-9484-9f18a4d87a92.jpg?v=1775028770","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na042000acaa-capacitor-yg9lc7","provider":"National HVAC Parts","version":"1.0","type":"link"}