{"product_id":"carrier-fa4anc042008aaaa-capacitor-42n3s0","title":"OEM Carrier Single Run Capacitor P291-1003 for FA4ANC042008AAAA","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor P291-1003 for Model FA4ANC042008AAAA\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 FA4ANC042008AAAA\u003c\/strong\u003e air handler. The run capacitor provides the sustained electrical phase shift that keeps the blower motor running at proper torque and efficiency. When this capacitor degrades or fails, you'll notice symptoms such as a humming blower motor that won't spin up, intermittent blower operation, the system tripping on thermal overload, or a complete no-start condition on the indoor fan — all of which can cascade into coil freeze-ups or compressor strain if left unaddressed.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Single run capacitor | OEM part number P291-1003 | Factory-matched MFD and voltage rating | Round or oval case per OEM specification | ±5% tolerance for reliable motor protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM capacitor, manufactured to exact factory tolerances. Generic alternatives often carry ±10% MFD variance, which accelerates blower motor winding wear and reduces equipment lifespan — particularly critical in air handler applications where the blower runs continuously.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Discharge the capacitor fully before handling any terminals (use an insulated resistor or discharge tool). Tools needed: 1\/4\" nut driver, needle-nose pliers, and a multimeter to confirm discharge. Always photograph existing wiring before disconnecting terminals. Capacitor is typically located in the control box or blower compartment of the air handler.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e Backed by a 1-year OEM factory warranty against defects. In stock and ships same business day from our climate-controlled warehouse — get your system back online fast.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eFA4ANC042008AAAA\u003c\/strong\u003e fan coil air handler. Always verify the MFD rating and voltage on your existing capacitor's label or the unit's data plate before ordering to confirm an exact match. Not sure? Our HVAC parts specialists verify fitment before you buy — contact us and we'll confirm compatibility with your unit's serial and model number.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909565763955,"sku":"CARRIE-FA4ANC042008AAAA-CAPACITOR-P291-1003","price":20.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909565796723,"sku":"CARRIE-FA4ANC042008AAAA-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_ae47bddb-663b-4e05-b29b-ce33e4949ae8.jpg?v=1782936947","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fa4anc042008aaaa-capacitor-42n3s0","provider":"National HVAC Parts","version":"1.0","type":"link"}