{"product_id":"carrier-control-board-ff1dne018005aaaa","title":"OEM Carrier Control Board HK42FZ034 for Model FF1DNE018005AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board HK42FZ034 for Model FF1DNE018005AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier control board (HK42FZ034) is the integrated furnace control that powers your FF1DNE018005AAAA fan coil unit, managing ignition sequencing, blower timing, and safety lockout functions. It continuously monitors the flame sensor, high-limit switch, and pressure switch, then commands the gas valve and indoor blower for safe, efficient heat delivery. Symptoms of a failed board include no response to a heat call, short cycling, a blower that won't turn off, or fault codes blinking on the onboard LED. As a factory-direct replacement it shares the exact pinout and control firmware of the original, eliminating any need for rewiring or reprogramming. Installation is moderate: shut off power, photograph the wiring, transfer plugs one at a time, and remount on the existing posts — typically 20-30 minutes. Genuine Carrier parts preserve your warranty and prevent the erratic timing seen with generic aftermarket boards. We stock this board and ship same-day on orders before 3PM CST. Guaranteed to fit the FF1DNE018005AAAA fan coil.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FF1DNE018005AAAA.\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":62946586984819,"sku":"carrier-control-board-ff1dne018005aaaa","price":189.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-ff1dne018005aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}