{"product_id":"icp-furnace-control-board-for-rgs243heaa0aaaa-integrated-ignition-control-ships-today","title":"ICP Furnace Control Board for RGS243HEAA0AAAA — Integrated Ignition Control | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM furnace control board kit (part #1183618) is the integrated ignition control for the ICP\/Tempstar\/Heil RGS243HEAA0AAAA gas furnace. The board manages the entire heating sequence — it sequences the inducer motor, proves the pressure switch, energizes the igniter, opens the gas valve, monitors flame, and times the blower on\/off delays. It also runs the board's onboard diagnostics, flashing fault codes through the status LED. When this board fails, the furnace typically will not start, locks out after a few ignition attempts, or short-cycles. Replacing it with the correct OEM control restores reliable, code-correct operation.\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\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eIgnition, blower \u0026amp; safety sequencing\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\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect OEM replacement for the ICP Tempstar Heil model RGS243HEAA0AAAA gas furnace and is shared across closely related RGS-series single-stage gas furnaces using the same control platform. Always confirm 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, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the low-voltage and line-voltage harnesses, remove the 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, reconnect each harness exactly per your photo, and reseat all locking connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a heat cycle, and confirm proper igniter, gas valve, flame, and blower sequencing with no fault codes.\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 has no response to a heat call\u003c\/li\u003e\n\u003cli\u003eRepeated ignition lockout or flashing fault\/error codes\u003c\/li\u003e\n\u003cli\u003eBlower runs constantly or never starts\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, corrosion, or scorched traces\/relays on the board\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":63027290898803,"sku":"1183618","price":206.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047525925235,"sku":"1183618-GEN","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_32b514e5-1d6e-4331-8b24-2b5cd0154064.jpg?v=1782888214","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-for-rgs243heaa0aaaa-integrated-ignition-control-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}