{"product_id":"carrier-ph2pnb030000ab-capacitor-42nt45","title":"OEM Carrier Dual Run Capacitor 45+5 MFD 370V — PH2PNB030000AB","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor 45+5 MFD 370V for Model PH2PNB030000AB\u003c\/h1\u003e\u003cp\u003eThis OEM dual run capacitor (part number \u003cstrong\u003eP291-4553\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH2PNB030000AB\u003c\/strong\u003e packaged heat pump unit. The dual run capacitor stores and delivers the precise electrical charge needed to start and sustain both the compressor and condenser fan motor simultaneously. When this component fails, symptoms typically include a loud humming with no motor movement, the system short-cycling within minutes of startup, or the outdoor fan spinning sluggishly before tripping the high-pressure limit. Also included in this listing is the companion \u003cstrong\u003esingle run capacitor P291-1503\u003c\/strong\u003e (15 MFD 370V oval), which independently powers the fan motor circuit on select configurations of this model. A failed single run capacitor typically causes the condenser fan to stop spinning while the compressor continues to run, rapidly overheating the refrigerant circuit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Run Cap Specs (P291-4553):\u003c\/strong\u003e 45+5 MFD (microfarad) | 370V rated | Oval case | ±5% factory tolerance | 50\/60 Hz | UL approved pressure-sensitive current interrupter | Non-PCB dielectric fluid | RoHS compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle Run Cap Specs (P291-1503):\u003c\/strong\u003e 15 MFD | 370V rated | Oval case | Factory Totaline\/Carrier spec | Non-PCB dielectric fluid | UL approved\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier\/Totaline capacitors are reliability-tested to 60,000 service hours per United Technologies application parameters, using high-grade metallized polypropylene film (5–12 microns thick). Generic capacitors often carry ±10% MFD tolerances, which accelerates motor winding wear and shortens compressor life — especially critical in packaged heat pump applications that run year-round.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Discharge the capacitor before touching any terminals (use an insulated screwdriver across terminals). Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter (to verify MFD before and after). Always photograph existing wiring before disconnecting. Match the HERM, FAN, and COM terminals exactly to your old unit's wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Leaves our warehouse same business day on orders placed before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Carrier model \u003cstrong\u003ePH2PNB030000AB\u003c\/strong\u003e packaged heat pump units. Always verify the MFD rating and voltage on your unit's data plate before ordering — using an incorrect MFD value will damage the compressor or fan motor. Our fitment team is available to verify compatibility before you purchase. \u003cem\u003eIn stock and ships today — order now to get your system back online fast.\u003c\/em\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641457693043,"sku":"CARRIE-PH2PNB030000AB-CAPACITOR-P291-4553","price":35.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641457725811,"sku":"CARRIE-PH2PNB030000AB-CAPACITOR-P291-4553-GEN","price":31.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-4553_8ed9e62f-86be-4526-a2d5-bc1110ba406b.jpg?v=1775028702","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph2pnb030000ab-capacitor-42nt45","provider":"National HVAC Parts","version":"1.0","type":"link"}