{"product_id":"carrier-fb4cnp024000aaaa-control-board-11oe73","title":"OEM Carrier Rectifier Control Board HK61EA003 for FB4CNP024000AAAA","description":"\u003ch1\u003eOEM Carrier Rectifier Control Board HK61EA003 for Model FB4CNP024000AAAA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified rectifier control board (part number \u003cstrong\u003eHK61EA003\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier FB4CNP024000AAAA\u003c\/strong\u003e air handler. The control board serves as the central command center of your air handler, managing blower motor operation, heat sequencing, fan speed staging, and all low-voltage signal communication between the thermostat and system components. When this board fails, symptoms typically include a completely unresponsive system, intermittent shutdowns, blower motor not running, or error codes that persist after other components have been ruled out. Replacing the control board with a genuine OEM part ensures full compatibility with all factory logic and safety routines built into your unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number HK61EA003 | Rectifier control board | Designed for Carrier FB4CNP024000AAAA air handler | Factory-matched low-voltage (24V) control circuit interface | Multi-speed blower control outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine OEM boards carry the exact firmware, relay ratings, and terminal layout as the original. Aftermarket boards may require wiring modifications, lack proprietary fault diagnostics, and can void system warranties — OEM is always the recommended choice for control boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 4\/5\u003c\/strong\u003e — Control board replacement requires comfort with low- and line-voltage wiring. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, multimeter, phone or camera to photograph all wiring before disconnection. We strongly recommend a licensed HVAC technician for this repair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed by 3 PM local time ship same business day from our climate-controlled parts warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier FB4CNP024000AAAA\u003c\/strong\u003e fan coil air handler. Always verify your existing board's part number against HK61EA003 before ordering. If you are unsure of fitment, our HVAC parts specialists are available to confirm compatibility before you purchase. In-stock and ready to ship — order today and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909534110067,"sku":"CARRIE-FB4CNP024000AAAA-CONTROL_BOARD-HK61EA003","price":156.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909534142835,"sku":"CARRIE-FB4CNP024000AAAA-CONTROL_BOARD-HK61EA003-GEN","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-HK61EA003_6da235c6-240a-4716-a4a1-34ff1f1c7e99.jpg?v=1782931620","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fb4cnp024000aaaa-control-board-11oe73","provider":"National HVAC Parts","version":"1.0","type":"link"}