{"product_id":"carrier-py1rea048074aawb-capacitor-42kxl1","title":"OEM Carrier Single Run Capacitor Kit 4+15 MFD 370V — PY1REA048074AAWB","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor Kit 4 MFD + 15 MFD 370V for Model PY1REA048074AAWB\u003c\/h1\u003e\u003cp\u003eThis OEM-matched single run capacitor kit contains both factory-specified capacitors for the \u003cstrong\u003eCarrier PY1REA048074AAWB\u003c\/strong\u003e 4-ton single-package rooftop gas\/electric unit. Part number \u003cstrong\u003eP291-0403\u003c\/strong\u003e (4 MFD 370V) serves the condenser fan motor circuit, while \u003cstrong\u003eP291-1503\u003c\/strong\u003e (15 MFD 370V) supports the compressor run circuit. Unlike a dual run capacitor, these packaged rooftop units use two discrete oval single run capacitors — one per motor. When either capacitor weakens or fails, you'll see symptoms like a condenser fan that hums but won't spin, a compressor that short-cycles, or a unit that trips on thermal overload within minutes of startup.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — P291-0403:\u003c\/strong\u003e 4 MFD (microfarad) | 370 VAC | Oval case | ±6% tolerance | 50\/60 Hz | Replaces HC90AA004, HC91CA004, 97F5704\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — P291-1503:\u003c\/strong\u003e 15 MFD (microfarad) | 370 VAC | Oval case | ±6% tolerance | 50\/60 Hz | Replaces HC90AA015, HC91CA015, HC90AB015\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Carrier sources these capacitors from Totaline\/Genteq — the OEM-branded versions carry tighter tolerances and are tested to 60,000 service hours. Generic capacitors may run ±10% MFD, accelerating motor wear on your packaged unit's compressor and fan motor over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect and lock out power at the rooftop disconnect before accessing the electrical compartment. Always discharge capacitors with a resistor before touching terminals. Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter with capacitance function. Photograph all wiring before disconnecting terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PY1REA048074AAWB\u003c\/strong\u003e 4-ton packaged rooftop gas\/electric unit. Verify both MFD ratings and the 370V voltage rating on your unit's data plate before ordering — do not substitute a higher MFD rating on the fan motor circuit. Questions about fitment? Our HVAC parts specialists verify compatibility before you order. In stock and ready to ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640748167539,"sku":"CARRIE-PY1REA048074AAWB-CAPACITOR-P291-0403","price":17.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640748200307,"sku":"CARRIE-PY1REA048074AAWB-CAPACITOR-P291-0403-GEN","price":15.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-0403_1b9daa39-3bdd-4dfd-ae8b-3d3433327b79.jpg?v=1775039613","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1rea048074aawb-capacitor-42kxl1","provider":"National HVAC Parts","version":"1.0","type":"link"}