{"product_id":"carrier-py1pnb030040aaaa-capacitor-42ll36","title":"OEM Carrier Dual Run Capacitor for PY1PNB030040AAAA — P291-3553","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor for Model PY1PNB030040AAAA (P291-3553)\u003c\/h1\u003e\u003cp\u003eThis OEM dual run capacitor (part number \u003cstrong\u003eP291-3553\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY1PNB030040AAAA\u003c\/strong\u003e split-system air conditioner. The dual run capacitor stores and releases the precise electrical charge required to start and sustain both the compressor and the condenser fan motor simultaneously. A failing capacitor is one of the most common causes of no-cool calls — symptoms include an audible hum with no motor movement, intermittent short-cycling, or a compressor that trips on thermal overload within minutes of startup. Replacing it with the correct OEM part restores factory-rated motor performance and protects your compressor investment.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Numbers:\u003c\/strong\u003e Primary — \u003cstrong\u003eP291-3553\u003c\/strong\u003e (Dual Run Capacitor) | Related singles — P291-0403 \u0026amp; P291-1503 (Single Run Capacitors). Verify your unit's data plate MFD and voltage rating before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM capacitor manufactured to exact ±3% MFD tolerance. Generic aftermarket units commonly run ±10% tolerance, which accelerates bearing wear in both the compressor and condenser fan motor and can void compressor warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — A straightforward swap for experienced DIYers or any HVAC technician. \u003cem\u003eAlways discharge the capacitor fully before touching terminals.\u003c\/em\u003e Tools needed: 1\/4\" nut driver, needle-nose pliers, insulated discharge resistor or screwdriver, and a multimeter to confirm the old capacitor has failed. Photograph all wire connections before 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. In stock at our warehouse — orders placed before 3 PM EST ship same business day.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier PY1PNB030040AAAA\u003c\/strong\u003e residential split-system condenser. Cross-references OEM part numbers P291-3553, P291-0403, and P291-1503. Always confirm MFD rating, voltage, and terminal configuration on your existing capacitor's label before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640907288947,"sku":"CARRIE-PY1PNB030040AAAA-CAPACITOR-P291-3553","price":56.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640907321715,"sku":"CARRIE-PY1PNB030040AAAA-CAPACITOR-P291-3553-GEN","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-3553_16badabb-a3c1-48ff-88b7-f6c07f39ffbe.jpg?v=1775028874","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1pnb030040aaaa-capacitor-42ll36","provider":"National HVAC Parts","version":"1.0","type":"link"}