{"product_id":"carrier-pg8mva066135aaja-control-board-4zd3pl","title":"OEM Carrier Integrated Furnace Control Board HK42FZ050 — PG8MVA066135A","description":"\u003ch1\u003eOEM Carrier Integrated Furnace Control Board HK42FZ050 for Model PG8MVA066135AAJA\u003c\/h1\u003e\u003cp\u003eThis OEM integrated furnace control board (IFC) is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8MVA066135AAJA\u003c\/strong\u003e gas furnace. The control board is the brain of your heating system — it sequences every operating stage, including draft inducer start-up, hot surface ignition, gas valve energizing, blower motor staging, and all safety circuit monitoring. When the board fails, symptoms range from a complete no-heat condition and hard lockout codes, to erratic blower behavior, ignition failure after trial, or a furnace that starts briefly then shuts down. Replacing the board with an exact OEM unit restores factory-programmed timing, fault detection, and multi-speed blower logic.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK42FZ050 | OEM Carrier Integrated Furnace Control Board | Factory-matched firmware and timing sequences for the \u003cstrong\u003ePG8MVA066135AAJA\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards carry factory-calibrated ignition trial timing, retry counts, and blower off-delays. Aftermarket boards may use generic timing that can cause nuisance lockouts, short-cycling, or voided equipment warranties — especially on multi-stage furnace platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting low-voltage thermostat wiring, line-voltage blower leads, gas valve and igniter terminals. Always photograph all wiring harnesses before removal. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter. Turn off power and gas before servicing. ESD precautions recommended when handling the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our stocked warehouse. Includes all original mounting hardware connections per factory spec.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct drop-in replacement for Carrier model \u003cstrong\u003ePG8MVA066135AAJA\u003c\/strong\u003e gas furnace. Verify your existing board's part number against HK42FZ050 before ordering — confirm on the board label or equipment data plate. Questions about fitment? Our HVAC parts team verifies compatibility before you order. \u003cstrong\u003eIn stock — ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642852725107,"sku":"CARRIE-PG8MVA066135AAJA-CONTROL_BOARD-HK42FZ050","price":193.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642852757875,"sku":"CARRIE-PG8MVA066135AAJA-CONTROL_BOARD-HK42FZ050-GEN","price":170.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK42FZ050_dccb1a07-ce19-44a1-a8a5-450c8cb86f8e.jpg?v=1775036275","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8mva066135aaja-control-board-4zd3pl","provider":"National HVAC Parts","version":"1.0","type":"link"}