{"product_id":"carrier-cha0400h2d-capacitor-42nszr","title":"OEM Carrier Run \u0026 Start Capacitor Kit for CHA0400H2D","description":"\u003ch1\u003eOEM Carrier Single Run \u0026amp; Start Capacitor Kit for Model CHA0400H2D\u003c\/h1\u003e\u003cp\u003eThis OEM-matched capacitor kit includes both the \u003cstrong\u003esingle run capacitor (P291-4504)\u003c\/strong\u003e and the \u003cstrong\u003estart capacitor (P281-1356)\u003c\/strong\u003e factory-specified for the \u003cstrong\u003eCarrier CHA0400H2D\u003c\/strong\u003e condensing unit. The run capacitor maintains a steady phase-shifted current to keep the compressor and fan motor running efficiently, while the start capacitor delivers the high-torque burst of energy needed to get the compressor moving from a dead stop. When either component fails, symptoms typically include a humming compressor that won't start, repeated tripping of the breaker, hard-start hesitation, or a unit that runs briefly before shutting down on thermal overload.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e P291-4504 — Single Run Capacitor, 440V rated, round case, ±5% MFD tolerance | P281-1356 — Start Capacitor, high-µF short-duty rating, factory-matched to CHA0400H2D compressor load requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM capacitors are manufactured to exact factory tolerances, ensuring proper motor start torque and run efficiency. Generic alternatives often carry ±10% MFD variance, which can shorten compressor life and void equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always discharge capacitors fully before handling — they retain lethal voltage after power-off. Tools needed: insulated screwdriver, 1\/4\" nut driver, needle-nose pliers, multimeter with capacitance function. Photograph all wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both capacitors. Orders placed before cutoff ship the same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as direct OEM replacements for the \u003cstrong\u003eCarrier CHA0400H2D\u003c\/strong\u003e condensing unit. Always verify MFD ratings and voltage markings on your existing capacitors against your unit's data plate before installing. Replacing both the run and start capacitor at the same time is recommended by technicians to prevent a repeat service call — if one has failed, the other is under equal thermal stress. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you order. \u003cstrong\u003eIn stock — order now and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909608427891,"sku":"CARRIE-CHA0400H2D-CAPACITOR-P291-4504","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909608460659,"sku":"CARRIE-CHA0400H2D-CAPACITOR-P291-4504-GEN","price":21.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-start-P291-4504.jpg?v=1782931779","url":"https:\/\/nationalhvacparts.com\/products\/carrier-cha0400h2d-capacitor-42nszr","provider":"National HVAC Parts","version":"1.0","type":"link"}