{"product_id":"carrier-contactor-c50a303021","title":"OEM Carrier Contactor C50A303021 for Model C50A303021","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Contactor C50A303021 for Model C50A303021\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier C50A303021 contactor is the genuine replacement switch that controls high-voltage power to your system's compressor and condenser fan motor. When your thermostat calls for cooling, the contactor's coil pulls the contacts closed to start the unit; releasing the coil opens them to stop it. Because it carries the full electrical load every cycle, the contactor wears out — arcing burns and pits the contacts, producing symptoms like loud humming, short cycling, or a no-start condition. Replacing it with the genuine OEM C50A303021 restores dependable operation and protects costly downstream components. Made to Carrier's factory specifications, it matches the original's coil voltage, amperage, and number of poles for an exact, modification-free fit in model C50A303021. Installation is a moderate task for an experienced technician — about 20-30 minutes — requiring a power disconnect, methodical wire transfer, and a final operational test. Confirm coil voltage compatibility before you begin. Order before 3PM CST for same-day shipping, so you can finish the repair and get the system back online without delay.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model C50A303021.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping before 3 PM CST. 30-day returns on uninstalled parts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":62964830175603,"sku":"carrier-contactor-c50a303021","price":42.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-contactor-c50a303021","provider":"National HVAC Parts","version":"1.0","type":"link"}