{"product_id":"icp-furnace-control-board-for-rgs243seaa0aaaa-oem-1183618-control-board-kit-ships-today","title":"ICP Furnace Control Board for RGS243SEAA0AAAA — OEM 1183618 Control Board Kit | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe OEM control board kit (part number 1183618) is the integrated furnace control (IFC) for the ICP Tempstar Heil RGS243SEAA0AAAA gas furnace. This board is the brain of the furnace — it manages the ignition sequence, sequences the inducer and blower motors, monitors safety limits and flame sense, and communicates with the thermostat. When the board fails, the furnace may not respond to a heat call, may short-cycle, may run the blower continuously, or may flash a diagnostic fault code. This genuine OEM kit ships with the correct board to restore full furnace operation.\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\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eRGS243SEAA0AAAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eBuilt as a direct-fit replacement for the ICP Tempstar Heil RGS243SEAA0AAAA furnace and other ICP-family gas furnaces that specify OEM part 1183618. ICP, Tempstar, Heil, and Comfortmaker furnaces commonly share control boards across model lines. Verify your furnace calls for 1183618 before ordering to ensure correct fitment.\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. Verify zero voltage with a multimeter before proceeding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace control-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 — this is critical for a correct reconnection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all harness connectors and low-voltage wires, remove the board mounting screws\/standoffs, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, then reconnect every wire and connector exactly per your photos. Set any DIP switches\/jumpers to match the original board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and run a full heat cycle. Confirm proper ignition, inducer and blower staging, and a clear (no-fault) diagnostic LED.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace is completely unresponsive to a thermostat call for heat.\u003c\/li\u003e\n\u003cli\u003eBlower runs constantly or fails to start on a heat cycle.\u003c\/li\u003e\n\u003cli\u003ePersistent diagnostic fault codes or no LED activity on the board.\u003c\/li\u003e\n\u003cli\u003eIntermittent operation, short-cycling, or scorched\/burned spots on the board.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day 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":63027286311283,"sku":"1183618","price":246.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047526482291,"sku":"1183618-GEN","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_7890fdd4-957e-477e-bb8d-70c751beac38.jpg?v=1782888237","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-for-rgs243seaa0aaaa-oem-1183618-control-board-kit-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}