{"product_id":"carrier-py3pna036090nb-contactor-1iwybu","title":"OEM Carrier Contactor 1-Pole 25A 24V Coil for PY3PNA036090NB","description":"\u003ch1\u003eOEM Carrier 1-Pole Contactor 25 Amp 24V Coil for Model PY3PNA036090NB\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier contactor (part #HN51KB024) factory-specified for the \u003cstrong\u003eCarrier PY3PNA036090NB\u003c\/strong\u003e packaged unit. The contactor is the high-voltage relay at the heart of your system's switching circuit: when the thermostat calls for cooling, the 24V control board sends a low-voltage signal to the contactor coil, which then closes the high-voltage circuit to power the compressor and condenser fan motor. A failed contactor is one of the most common reasons an air conditioner will hum but refuse to start, trip repeatedly, or simply not respond to a cooling call at all. Pitted or welded contact points are the most frequent failure mode, caused by years of electrical arcing under load.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 1-Pole | 25 Amp | 24V Coil | OEM Part #HN51KB024 | Factory-matched electrical ratings for PY3PNA036090NB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM contactor — not an aftermarket substitute. OEM contact points meet factory arc-resistance standards, ensuring accurate switching life. Generic contactors often use inferior silver-alloy contacts that pit and weld prematurely, leading to repeat failures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Swap wires one at a time to avoid miswiring. Test for continuity after installation before restoring power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for \u003cstrong\u003eCarrier model PY3PNA036090NB\u003c\/strong\u003e. Always verify your unit's data plate matches the 1-pole, 25A, 24V coil specification before ordering. Our parts specialists are available to confirm fitment — contact us before you order if you have any questions. Order today and get back to comfort fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640388079987,"sku":"CARRIE-PY3PNA036090NB-CONTACTOR-HN51KB024","price":115.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640388112755,"sku":"CARRIE-PY3PNA036090NB-CONTACTOR-HN51KB024-GEN","price":101.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-HN51KB024_135fa6d5-8a8f-4911-8d59-fe79c7404634.jpg?v=1775021355","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pna036090nb-contactor-1iwybu","provider":"National HVAC Parts","version":"1.0","type":"link"}