{"product_id":"carrier-fc4bnf042000aeaa-capacitor-42n3s0","title":"OEM Carrier Single Run Capacitor P291-1003 for FC4BNF042000AEAA","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor P291-1003 for Model FC4BNF042000AEAA\u003c\/h1\u003e\u003cp\u003eThis OEM single run capacitor (part number \u003cstrong\u003eP291-1003\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier FC4BNF042000AEAA\u003c\/strong\u003e fan coil unit. A single run capacitor maintains a continuous phase shift to keep the blower motor running at peak efficiency once it has started. When the capacitor degrades or fails, the motor may hum without turning, run sluggishly, overheat, or the system may short-cycle — all signs it is time for a direct OEM replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Single run capacitor | Factory-matched MFD rating | 370V\/440V rated | Oval or round case per OEM specification | ±5% tolerance for precise motor performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier capacitor built to exact factory tolerances. Generic aftermarket capacitors frequently fall outside ±10% MFD accuracy, placing undue stress on the blower motor windings and shortening overall motor life — a risk not worth taking on a fan coil investment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor fully before handling any terminals. Recommended tools: 1\/4\" nut driver, insulated needle-nose pliers, and a multimeter capable of MFD readings. Photograph all wiring connections before disconnecting to ensure correct reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e Backed by a 1-year OEM factory warranty. Orders placed by cutoff ship the same business day from our climate-controlled parts warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-matched for the Carrier \u003cstrong\u003eFC4BNF042000AEAA\u003c\/strong\u003e fan coil unit. Always verify the MFD rating and voltage printed on your existing capacitor's label or the unit's data plate before ordering to confirm an exact match. Our parts specialists are available to verify fitment prior to purchase — do not hesitate to reach out. Order today and get your system back to full performance fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909526901107,"sku":"CARRIE-FC4BNF042000AEAA-CAPACITOR-P291-1003","price":20.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909526933875,"sku":"CARRIE-FC4BNF042000AEAA-CAPACITOR-P291-1003-GEN","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-round-single-P291-1003_0e463ee5-f069-4606-9927-0963c7e73f89.jpg?v=1782936971","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fc4bnf042000aeaa-capacitor-42n3s0","provider":"National HVAC Parts","version":"1.0","type":"link"}