{"product_id":"carrier-fb4asb048000aeaa-capacitor-42n4o5","title":"OEM Carrier Single Run Capacitor P291-1503 for FB4ASB048000AEAA","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor P291-1503 for Model FB4ASB048000AEAA\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM single run capacitor (part number \u003cstrong\u003eP291-1503\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier FB4ASB048000AEAA\u003c\/strong\u003e air handler. The run capacitor maintains a continuous phase-shifted current to keep the blower motor running at peak efficiency after startup. When this capacitor degrades or fails, you'll notice symptoms such as a humming blower motor that won't spin, sluggish or intermittent blower operation, overheating of the motor, or the air handler shutting down shortly after startup. Left unaddressed, a failing run capacitor can cause permanent motor burnout — making this an inexpensive repair that prevents a much costlier one.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Single run capacitor | OEM part number P291-1503 | Factory-matched MFD and voltage rating | Round or oval case per OEM spec | ±3% tolerance for precise motor protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM part built to exact factory tolerances. Aftermarket capacitors often carry ±10% MFD variance, which stresses motor windings over time and can void equipment warranties. OEM ensures the longest service life for your blower motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — A straightforward repair for a qualified technician or experienced DIYer. Always discharge the capacitor fully before handling terminals. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, and a multimeter to confirm capacitance before and after replacement. Photograph all wiring connections prior to removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e Backed by a 1-year OEM factory warranty against defects. Orders placed before our daily cut-off ship same business day from our stocked warehouse — get your system back online fast.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and tested specifically for the \u003cstrong\u003eCarrier FB4ASB048000AEAA\u003c\/strong\u003e 4-ton residential air handler. Always verify the MFD rating and voltage printed on your existing capacitor against your unit's data plate before completing your order. Our HVAC parts specialists are available to confirm fitment — don't hesitate to reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909542433139,"sku":"CARRIE-FB4ASB048000AEAA-CAPACITOR-P291-1503","price":21.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909542465907,"sku":"CARRIE-FB4ASB048000AEAA-CAPACITOR-P291-1503-GEN","price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-round-single-P291-1503_df9f46d8-abc7-464e-8199-62bdbaefd89a.jpg?v=1782937092","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fb4asb048000aeaa-capacitor-42n4o5","provider":"National HVAC Parts","version":"1.0","type":"link"}