{"product_id":"carrier-control-board-fa4cnf024000aaaa","title":"OEM Carrier Control Board HK42FZ034 for Model FA4CNF024000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board HK42FZ034 for Model FA4CNF024000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier control board (HK42FZ034) is the main circuit board that controls operation of your Carrier FA4CNF024000AAAA fan coil air handler. It manages blower motor timing, interprets thermostat signals, and enforces onboard safety logic to keep your system heating and cooling dependably. A failing board commonly causes a no-start blower, random shutdowns, or unpredictable cycling. Engineered to exact Carrier factory specifications, this genuine replacement guarantees a precise fit and restores original performance to the FA4CNF024000AAAA. Installation difficulty is moderate and best performed by a licensed HVAC technician, since it involves disconnecting line-voltage wiring and carefully moving connectors to matching terminals; experienced pros typically complete the job in under an hour. Always cut power at the breaker before servicing. Choosing an authentic OEM board protects your equipment warranty and ensures complete system compatibility. In stock and shipping same-day on orders placed before 3PM CST. Shop NationalHVACParts.com for genuine Carrier parts and fast, reliable delivery you can trust.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FA4CNF024000AAAA.\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":62955580129651,"sku":"carrier-control-board-fa4cnf024000aaaa","price":124.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-fa4cnf024000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}