{"product_id":"carrier-control-board-fb4bsb070000aaaa","title":"OEM Carrier Control Board HK42FZ009 for Model FB4BSB070000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board HK42FZ009 for Model FB4BSB070000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier control board (HK42FZ009) manages blower operation, fan timing, and safety interlocks on your Carrier FB4BSB070000AAAA fan coil unit. A failing control board often shows up as a blower that won't run, intermittent operation, or repeated fault codes — replacing it restores reliable airflow and system control. Genuine Carrier boards deliver the exact relay logic, voltage handling, and connector layout designed for your model, something aftermarket alternatives can't reliably match. The swap is a moderate job: cut power at the disconnect, label and move the wiring harness, transfer mounting hardware, and reconnect. Most installs run 30-45 minutes, and we recommend a qualified HVAC professional for any line-voltage connections. Protect your transformer and blower motor with a factory-original part engineered for long service life. We keep this item in stock, and orders placed before 3PM CST ship the same business day so you're not left waiting in the heat or cold. Order genuine Carrier parts today from NationalHVACParts.com.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4BSB070000AAAA.\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":62951072137587,"sku":"carrier-control-board-fb4bsb070000aaaa","price":189.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-fb4bsb070000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}