{"product_id":"icp-control-board-for-rgs243sfea0aaaa-oem-furnace-control-kit-1183618-ships-today","title":"ICP Control Board for RGS243SFEA0AAAA — OEM Furnace Control Kit 1183618 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM integrated furnace control board kit (part #1183618) is the central electronic brain of your ICP \/ Tempstar \/ Heil RGS243SFEA0AAAA gas furnace. It manages the ignition sequence, blower and inducer timing, safety lockouts, and communication between the thermostat, igniter, gas valve, and pressure switches. When this board fails, the furnace can no longer safely sequence a heat call. Common failure symptoms include no ignition, the furnace failing to start, a blower that runs constantly or not at all, error\/flash codes on the diagnostic LED, or intermittent no-heat conditions during cold weather. The board operates on a 24V control circuit and includes onboard diagnostics to speed troubleshooting.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\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\u003eType\u003c\/td\u003e\n\u003ctd\u003eIntegrated Furnace Control Board (Kit)\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\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGas Furnace\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered as a direct OEM replacement for the ICP \/ Tempstar \/ Heil RGS243SFEA0AAAA gas furnace and compatible models across the Comfortmaker and Heil family that share this control platform. Always verify your existing board part number before ordering.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace blower\/control compartment door.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and connector position on the old board before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the molded harness connectors, disconnect the spade terminals, and unscrew the failed board from its standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, then reconnect each harness and terminal exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a heat call, and confirm proper ignition, blower, and inducer sequencing on the diagnostic LED.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFurnace will not ignite or fails to respond to a heat call\u003c\/li\u003e\n\u003cli\u003eDiagnostic LED shows a fault\/lockout flash code\u003c\/li\u003e\n\u003cli\u003eBlower or inducer motor runs continuously or never starts\u003c\/li\u003e\n\u003cli\u003eIntermittent no-heat or random shutdowns\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\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":63027285918067,"sku":"1183618","price":193.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047464157555,"sku":"1183618-GEN","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_ddbf5bbf-598c-4c88-8c92-e5d51f3a9399.jpg?v=1782885370","url":"https:\/\/nationalhvacparts.com\/products\/icp-control-board-for-rgs243sfea0aaaa-oem-furnace-control-kit-1183618-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}