{"product_id":"carrier-control-board-fb4asa036000aaaa","title":"OEM Carrier Control Board HK42FZ Series for Model FB4ASA036000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board HK42FZ Series for Model FB4ASA036000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier control board (HK42FZ-compatible series) is the central furnace control module that governs blower operation, fan-on\/off timing, and safety interlocks in your Carrier FB4ASA036000AAAA fan coil air handler. It relays signals between the thermostat, blower motor, and electric heat strips to ensure correct sequencing and shut down the system safely during fault conditions. Symptoms of a failing board include no heat, no blower response, or erratic cycling. This direct-replacement part is built to factory specifications for an exact fit and dependable performance with your specific unit. Installation is moderate difficulty and ideally done by an HVAC technician: cut power to the unit, photograph the existing wiring, move each connector to the matching terminal, and mount the board on the original standoffs. No reprogramming needed. Confirm the part number on your current board before ordering. In stock and ships same-day on orders placed before 3PM CST, so your system is back up quickly. Genuine OEM quality delivers lasting reliability and confidence.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4ASA036000AAAA.\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":62952364769651,"sku":"carrier-control-board-fb4asa036000aaaa","price":186.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-fb4asa036000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}