{"product_id":"carrier-py1rea048115aawb-capacitor-42kxl1","title":"OEM Carrier Single Run Capacitor 4 MFD 370V for PY1REA048115AAWB","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor 4 MFD 370V for Model PY1REA048115AAWB\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier\/Totaline single run capacitor is the factory-specified replacement for the \u003cstrong\u003eCarrier PY1REA048115AAWB\u003c\/strong\u003e packaged unit. The run capacitor remains in the circuit continuously while the fan motor operates, providing the phase-shifted current needed to keep the motor running efficiently. When this capacitor weakens or fails, you'll typically experience a fan motor that hums but won't spin, intermittent fan operation, or a unit that trips on high-pressure lockout due to insufficient airflow across the coil.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 4 MFD (microfarad) | 370 VAC rated | Oval case | Part Numbers: P291-0403 (primary), P291-1503 (companion single run capacitor) | Replaces OEM P\/N 97F5704, HC90AA004, HC91CA004, HC90AB004\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier\/Totaline OEM capacitor manufactured to ±5% MFD tolerance and subjected to 100% electrical testing before packaging. Generic alternatives often carry ±10% tolerance, which accelerates motor winding stress and shortens component life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 1\/5\u003c\/strong\u003e — One of the easiest HVAC repairs. Shut off power at the disconnect and allow 5 minutes for the capacitor to self-discharge before touching terminals. Tools needed: flathead screwdriver, needle-nose pliers, optional multimeter. Always photograph existing wiring before disconnecting terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM drop-in replacement for \u003cstrong\u003eCarrier model PY1REA048115AAWB\u003c\/strong\u003e. Always verify the MFD rating and voltage on your unit's data plate before ordering — never substitute a lower voltage-rated capacitor. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you order. \u003cstrong\u003eOrder today and get same-day shipping!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640734110067,"sku":"CARRIE-PY1REA048115AAWB-CAPACITOR-P291-0403","price":19.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640734142835,"sku":"CARRIE-PY1REA048115AAWB-CAPACITOR-P291-0403-GEN","price":16.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-0403_44de7057-2b7a-4d70-b4dd-bb0ecc6d5fe0.jpg?v=1775039141","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1rea048115aawb-capacitor-42kxl1","provider":"National HVAC Parts","version":"1.0","type":"link"}