{"product_id":"carrier-control-board-lc750lccmray500","title":"OEM Carrier Control Board LC750LCCMRAY500 for Model LC750LCCMRAY500","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board LC750LCCMRAY500 for Model LC750LCCMRAY500\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier control board is the factory replacement for Carrier model LC750LCCMRAY500 packaged units. Acting as the system's main controller, the board sequences cooling and heating operation, manages blower delays, monitors safety circuits, and reports fault codes that simplify troubleshooting. A failing board commonly causes no-cool or no-heat conditions, repeated safety lockouts, or flashing diagnostic codes; the correct OEM board restores factory sequencing and protects connected components like the contactor and motors. Engineered to Carrier's exact specifications, it reproduces the original connector layout, relay ratings, and control firmware, so the existing harnesses plug directly in with no rewiring. Installation is moderate difficulty for a qualified technician: disconnect power, transfer connectors one at a time to the matching ports, replicate the old board's DIP switch settings, and verify a complete operating cycle after restoring power. Choosing OEM avoids the mismatched behavior of aftermarket boards and preserves your equipment warranty. Order before 3PM CST and your board ships the same day from in-stock inventory. National HVAC Parts delivers authentic Carrier parts quickly and reliably.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model LC750LCCMRAY500.\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":62942600823155,"sku":"carrier-control-board-lc750lccmray500","price":311.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-lc750lccmray500.jpg?v=1781467833","url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-lc750lccmray500","provider":"National HVAC Parts","version":"1.0","type":"link"}