{"product_id":"carrier-py1pnb036090nbaa-capacitor-42nx40","title":"OEM Carrier Dual Run Capacitor 40+5 MFD 370V — PY1PNB036090NBAA","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor 40+5 MFD 370V for Model PY1PNB036090NBAA\u003c\/h1\u003e\u003cp\u003eThis OEM dual run capacitor (Carrier part number \u003cstrong\u003eP291-4053\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY1PNB036090NBAA\u003c\/strong\u003e split-system air conditioner. The dual run capacitor stores and releases the electrical charge required to start and sustain both the compressor and the condenser fan motor simultaneously. A failing capacitor is one of the most common causes of AC failure in the field — symptoms include a distinct hum with no motor movement, the compressor short-cycling within minutes of startup, or the outdoor unit failing to start while the air handler continues to run. This unit also uses supporting single run capacitors P291-0403 (4 MFD 370V) and P291-1503 (15 MFD 370V) — confirm your unit's data plate before ordering all three.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40+5 MFD (microfarad) | 370 VAC rated | Oval case style | Factory-matched ±3% tolerance | Non-PCB dielectric fluid | UL-approved pressure-sensitive current interrupter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM capacitor sourced from Carrier's approved manufacturer (Totaline\/Genteq lineage). OEM units maintain exact ±3% MFD tolerance; generic aftermarket capacitors commonly run ±10%, which accelerates compressor and fan motor wear 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 touching any terminals (use an insulated resistor or discharge tool). Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter with capacitance mode. Photograph all wiring connections before disconnecting. Observe polarity markings on the HERM, FAN, and COM terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our warehouse. Fast delivery to keep your system — and your customers — cool.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePY1PNB036090NBAA\u003c\/strong\u003e split-system air conditioner. Also cross-references OEM part numbers \u003cstrong\u003eP291-4053\u003c\/strong\u003e, \u003cstrong\u003eP291-0403\u003c\/strong\u003e, and \u003cstrong\u003eP291-1503\u003c\/strong\u003e for this platform. Always verify MFD rating and voltage on your unit's data plate before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — no guesswork.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640902635891,"sku":"CARRIE-PY1PNB036090NBAA-CAPACITOR-P291-4053","price":47.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640902668659,"sku":"CARRIE-PY1PNB036090NBAA-CAPACITOR-P291-4053-GEN","price":41.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-4053_11703b14-b211-45e4-aca7-cff86010e291.jpg?v=1775028635","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1pnb036090nbaa-capacitor-42nx40","provider":"National HVAC Parts","version":"1.0","type":"link"}