{"product_id":"carrier-ph1zna036000aaaa-capacitor-wol6ap","title":"OEM Carrier Dual Run Capacitor 40+5 MFD 370V for PH1ZNA036000AAAA","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor 40+5 MFD 370V for Model PH1ZNA036000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM dual run capacitor (Carrier part# \u003cstrong\u003eP291-4053RS\u003c\/strong\u003e, with companion single run capacitor \u003cstrong\u003eP291-1503\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH1ZNA036000AAAA\u003c\/strong\u003e package heat pump unit. The dual run capacitor stores and delivers the electrical charge required to start and sustain both the compressor and the condenser fan motor simultaneously from a single enclosure. When this capacitor begins to fail, you'll typically notice the system humming but not starting, short-cycling within the first few minutes of operation, or warm air blowing from a unit that should be cooling. Left unaddressed, a weak capacitor accelerates compressor wear and can lead to a far more expensive repair.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40+5 MFD (microfarad) | 370 VAC rated | Round case | Three-terminal (HERM \/ FAN \/ COM) | Factory-matched ±5% tolerance | 50\/60 Hz | Non-PCB dielectric fluid | UL approved\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier capacitors (manufactured by GE\/Genteq for Carrier) are performance-tested to 60,000 service hours and built to exact factory tolerance. Generic aftermarket capacitors often carry a ±10% MFD tolerance, which accelerates motor winding stress and can shorten compressor life — a risk not worth taking on a 3-ton package unit.\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 a 20kΩ resistor or insulated screwdriver). Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter (capacitance setting). Photograph all wiring connections before disconnecting. This job typically takes 15–30 minutes for a competent DIYer.\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. Bundle with companion single run capacitor P291-1503 (15 MFD 370V oval) to complete a full capacitor service on your PH1ZNA036000AAAA.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the \u003cstrong\u003eCarrier PH1ZNA036000AAAA\u003c\/strong\u003e 3-ton package heat pump. Verify the MFD rating and voltage on your unit's data plate before ordering — the compressor side must match 40 MFD and the fan side must match 5 MFD. Voltage rating of 370V or higher is acceptable. Not sure it fits? Our HVAC parts team verifies fitment before you order — reach out before checkout.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641518018931,"sku":"CARRIE-PH1ZNA036000AAAA-CAPACITOR-P291-4053RS","price":27.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641518051699,"sku":"CARRIE-PH1ZNA036000AAAA-CAPACITOR-P291-4053RS-GEN","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-4053RS_f87392b7-c094-4ac7-8dd1-355f51cfb1bb.jpg?v=1775028625","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph1zna036000aaaa-capacitor-wol6ap","provider":"National HVAC Parts","version":"1.0","type":"link"}