{"product_id":"carrier-gb3aav060135agja-control-board-4zd3t7","title":"OEM Carrier Integrated Furnace Control Board HK42FZ016 — GB3AAV060135A","description":"\u003ch1\u003eOEM Carrier Integrated Furnace Control Board HK42FZ016 for Model GB3AAV060135AGJA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM integrated furnace control (IFC) board — part numbers \u003cstrong\u003eHK42FZ016\u003c\/strong\u003e and \u003cstrong\u003e325878-751\u003c\/strong\u003e — designed as the direct replacement for the \u003cstrong\u003eCarrier GB3AAV060135AGJA\u003c\/strong\u003e gas furnace. The control board is the brain of your furnace: it sequences the inducer motor, igniter, gas valve, and blower in precise timing to ensure safe, efficient operation. When the board fails, symptoms include a furnace stuck in lockout, failure to initiate the ignition sequence, erratic blower behavior, or a completely unresponsive unit even with thermostat demand present. Fault codes flashed on the board's LED indicator are your first diagnostic clue — a failed board often displays continuous or non-standard blink patterns.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM part numbers HK42FZ016 \/ 325878-751 | Integrated Furnace Control (IFC) board | 24V control circuit | Compatible with single-stage gas valve and HSI ignition system | Factory-matched logic timing for GB3AAV060135AGJA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards carry exact firmware, relay ratings, and component tolerances specified by Carrier engineering. Aftermarket boards may use off-spec relays or altered timing sequences that cause nuisance lockouts, void equipment warranties, or create unsafe operating conditions. For a safety-critical component like a control board, OEM is strongly recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires comfort with low-voltage wiring and photographing all connector positions before removal. Tools needed: Phillips and flat-head screwdrivers, needle-nose pliers, phone or camera for wiring documentation, and a multimeter to verify 24V transformer output before installing the new board. Power down and lock out the furnace at the disconnect and breaker before beginning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our climate-controlled parts warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This board is factory-specified for the \u003cstrong\u003eCarrier GB3AAV060135AGJA\u003c\/strong\u003e 80% AFUE gas furnace. Cross-reference your existing board's part number (HK42FZ016 or 325878-751) against your unit's data plate to confirm fitment before ordering. Carrier part numbers may also appear on a label affixed to the original board. Not sure if this is the right part? Our HVAC parts specialists verify fitment before every order — contact us and we'll confirm compatibility fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909384065395,"sku":"CARRIE-GB3AAV060135AGJA-CONTROL_BOARD-HK42FZ016","price":180.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909384098163,"sku":"CARRIE-GB3AAV060135AGJA-CONTROL_BOARD-HK42FZ016-GEN","price":102.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-HK42FZ016_77acf769-2732-4094-a217-6f8278ac5af7.jpg?v=1782928335","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb3aav060135agja-control-board-4zd3t7","provider":"National HVAC Parts","version":"1.0","type":"link"}