{"product_id":"carrier-py2pnb048115aa-capacitor-42kxl1","title":"OEM Carrier Single Run Capacitor 4 MFD 370V for PY2PNB048115AA","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor 4 MFD 370V for Model PY2PNB048115AA\u003c\/h1\u003e\u003cp\u003eThis OEM single run capacitor (Part# \u003cstrong\u003eP291-0403\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY2PNB048115AA\u003c\/strong\u003e packaged unit. The run capacitor maintains the continuous phase-shifted current required to keep your condenser fan motor or blower motor spinning efficiently. When this capacitor weakens or fails, common symptoms include a motor that hums but refuses to start, intermittent shutdowns on hot days, or a tripped high-pressure safety limit due to reduced airflow. Left unaddressed, a failed run capacitor can overheat and permanently damage an otherwise healthy motor.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 4 MFD (microfarad) | 370V rated | Oval case | 50\/60 Hz | Factory-matched ±5% tolerance | Replaces 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 exact factory tolerances. Generic aftermarket units often deviate ±10% MFD, accelerating motor bearing wear and shortening compressor service life. OEM is the correct choice for warranty-covered equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor before handling any terminals. Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all wiring before disconnecting. Note: P291-1503 (15 MFD 370V, secondary run capacitor on this model) has been discontinued — its current successor is P291-1504 (440V, 15 MFD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePY2PNB048115AA\u003c\/strong\u003e packaged HVAC unit. Verify the MFD and voltage rating on your unit's data plate before ordering. This listing is for the primary \u003cstrong\u003eP291-0403 (4 MFD 370V)\u003c\/strong\u003e single run capacitor. A second run capacitor on this unit uses Part# P291-1503 \/ P291-1504 (15 MFD). Have a fitment question? Our HVAC parts specialists verify compatibility before you order — reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640535011699,"sku":"CARRIE-PY2PNB048115AA-CAPACITOR-P291-0403","price":16.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640535044467,"sku":"CARRIE-PY2PNB048115AA-CAPACITOR-P291-0403-GEN","price":14.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-0403_139e1213-029e-4def-836b-06e74466c943.jpg?v=1775039179","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2pnb048115aa-capacitor-42kxl1","provider":"National HVAC Parts","version":"1.0","type":"link"}