{"product_id":"icp-furnace-control-board-for-rgs243lrfa0aaaa-oem-kit-1183618-ships-today","title":"ICP Furnace Control Board for RGS243LRFA0AAAA — OEM Kit 1183618 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM control board kit (part number 1183618) for the ICP\/Tempstar\/Heil RGS243LRFA0AAAA gas furnace. The integrated furnace control board is the brain of the system — it sequences the inducer, igniter, gas valve, and blower, monitors safety circuits and limit switches, and reads the thermostat call for heat. When the board fails, the furnace may be completely dead, may run the blower without heating, may short-cycle, or may flash diagnostic fault codes through its onboard LED. Boards commonly fail from voltage surges, blown onboard fuses, burned relays, or corroded traces. This kit includes the replacement board so you can restore reliable operation in a single service visit.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1183618\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eKit, Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eIntegrated Furnace Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Tempstar \/ Heil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Model\u003c\/td\u003e\n\u003ctd\u003eRGS243LRFA0AAAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGas Furnace Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned as a direct-fit OEM replacement kit for the ICP\/Tempstar\/Heil RGS243LRFA0AAAA gas furnace. ICP builds under several brand labels (Tempstar, Heil, Comfortmaker, Arcoaire) on shared platforms, so this kit also services equivalent furnaces. Verify part number 1183618 and the existing board's connector layout before installing.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the furnace switch and breaker, and shut off the gas. Verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control\/blower-compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and connector on the existing board before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all harness connectors and remove the board mounting screws or standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board and reconnect each connector exactly per your photos. Confirm the thermostat and line-voltage leads are correct.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, run a full heat cycle, and verify the inducer, igniter, gas valve, and blower sequence correctly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace completely unresponsive to a heat call\u003c\/li\u003e\n\u003cli\u003eBlower runs but no ignition sequence begins\u003c\/li\u003e\n\u003cli\u003ePersistent or erratic LED fault codes\u003c\/li\u003e\n\u003cli\u003eVisible burned relays, scorched traces, or a blown onboard fuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day on orders placed before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63027287589235,"sku":"1183618","price":245.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047526252915,"sku":"1183618-GEN","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_fa5ba44e-41e0-48a7-9fcd-565c699446e7.jpg?v=1782888228","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-for-rgs243lrfa0aaaa-oem-kit-1183618-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}