{"product_id":"carrier-py3gnaa24040aa-contactor-1iwxlq","title":"OEM Carrier Contactor 24V Coil 2-Pole for PY3GNAA24040AA","description":"\u003ch1\u003eOEM Carrier Contactor 24V Coil 2-Pole for Model PY3GNAA24040AA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor (part number \u003cstrong\u003eHN51KC024\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PY3GNAA24040AA\u003c\/strong\u003e packaged unit. The contactor is the high-voltage relay that receives a 24V signal from the thermostat or control board and closes to send line voltage to the compressor and\/or condenser fan motor. When a contactor fails — whether due to pitted contacts, a burned coil, or a stuck plunger — the most common symptom is an air conditioning system that simply will not turn on, or one that runs continuously without cycling off.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 24V AC coil voltage | 2-pole configuration | Replaces OEM part number HN51KC024 | Factory-matched contact rating for the PY3GNAA24040AA unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor is built to Carrier's exact contact gap, coil pull-in voltage, and amperage ratings. Generic contactors can have inconsistent coil resistance and lower-grade contact materials, leading to premature pitting and failure — especially in high-cycle cooling seasons.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Work must be performed with power fully disconnected at the disconnect box AND the breaker panel. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and wire labels or tape for documenting existing wiring. Photo all wire positions before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct OEM replacement for Carrier model \u003cstrong\u003ePY3GNAA24040AA\u003c\/strong\u003e. Always verify the coil voltage and pole configuration on your existing contactor's data label before ordering. Our fitment specialists are available to confirm compatibility — just reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640461807987,"sku":"CARRIE-PY3GNAA24040AA-CONTACTOR-HN51KC024","price":68.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640461840755,"sku":"CARRIE-PY3GNAA24040AA-CONTACTOR-HN51KC024-GEN","price":60.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-HN51KC024_0de3ab2d-6527-4ff2-9d33-f076fef1a7ba.jpg?v=1775022163","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gnaa24040aa-contactor-1iwxlq","provider":"National HVAC Parts","version":"1.0","type":"link"}