{"product_id":"payne-pa1pna042000aaba-capacitor-42nx47","title":"OEM Payne Dual Run Capacitor 40+5 MFD 440V — PA1PNA042000AABA","description":"\u003ch1\u003eOEM Payne Dual Run Capacitor 40+5 MFD 440V for Model PA1PNA042000AABA\u003c\/h1\u003e\u003cp\u003eThis OEM dual run capacitor (part number \u003cstrong\u003eP291-4054\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003ePayne PA1PNA042000AABA\u003c\/strong\u003e split-system air conditioner, a 3.5-ton R-410A condenser. A single dual run capacitor services both the compressor and the condenser fan motor simultaneously, storing and releasing the electrical charge needed to start and sustain each component through every cooling cycle. Common failure symptoms include a loud humming sound with no motor movement, the compressor attempting to start and tripping off on thermal overload, or the condenser fan spinning slowly or not at all. A single run capacitor (\u003cstrong\u003eP291-1503\u003c\/strong\u003e) is also available if only one motor circuit requires replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40+5 MFD (microfarad) | 440V rated | Round oval case | Factory-matched ±3% tolerance | Replaces OEM part numbers P291-4054 (dual run) and P291-1503 (single run)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM capacitors are manufactured to Payne's exact factory tolerance specifications. Aftermarket generics commonly run ±10% MFD deviation, which accelerates compressor wear, shortens motor life, and can void equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor fully before handling terminals — stored voltage can exceed 300V even after power is disconnected. Tools needed: insulated screwdriver, 1\/4\" nut driver, needle-nose pliers, and a multimeter with capacitance testing mode. Photograph all wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Orders ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Payne \u003cstrong\u003ePA1PNA042000AABA\u003c\/strong\u003e split-system condenser. Always verify the MFD rating and voltage printed on your existing capacitor's data label before ordering — mismatched capacitance will damage motors. Our parts specialists are available to confirm fitment before you buy. \u003cstrong\u003eOrder now and receive same-day shipping on all in-stock capacitors.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908978200947,"sku":"PAYNE-PA1PNA042000AABA-CAPACITOR-P291-4054","price":56.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908978233715,"sku":"PAYNE-PA1PNA042000AABA-CAPACITOR-P291-4054-GEN","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-4054_afbb1d1a-a33f-4359-9d96-2cb7afb4f264.jpg?v=1780718269","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa1pna042000aaba-capacitor-42nx47","provider":"National HVAC Parts","version":"1.0","type":"link"}