{"product_id":"icp-furnace-control-board-kit-for-rgs120seca0aaa-oem-replacement-ships-today","title":"ICP Furnace Control Board Kit for RGS120SECA0AAA — OEM Replacement | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM furnace control board kit (OEM #1183618) for the ICP Tempstar Heil RGS120SECA0AAA gas furnace. The integrated furnace control (IFC) is the brain of the heating system — it sequences the inducer motor, hot surface igniter, gas valve, and blower, monitors the pressure switch and flame sensor for safe operation, and stores diagnostic fault codes on its onboard LED. When the board fails the furnace may behave erratically: no response to a heat call, blower running continuously, ignition sequence stalling, or repeated lockouts with no clear mechanical cause. Because the board governs every safety interlock, a failed or intermittent control board should always be replaced with a correct OEM unit rather than bypassed. This kit includes the board and mounting provisions for a direct factory replacement.\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\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\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGas Furnace Ignition \u0026amp; Blower Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eOnboard Fault-Code LED\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\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eBuilt for the ICP \/ Tempstar \/ Heil RGS120SECA0AAA and shared across Comfortmaker, Heil, and Tempstar furnaces that use this control kit. Confirm the connector layout and board footprint against your existing board 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 electrical power and shut off the gas, then verify zero voltage at the board 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 harness plug and terminal before disconnecting — connector position is critical.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug each harness, remove the mounting screws, and lift out the old control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, reconnect every harness exactly per your photos, and verify all locking tabs seat fully.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and gas, call for heat, and confirm the full ignition sequence and blower operation with no fault codes.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo response to a thermostat heat call despite good power and gas.\u003c\/li\u003e\n\u003cli\u003eBlower runs continuously or fails to start after ignition.\u003c\/li\u003e\n\u003cli\u003eRepeated lockouts or erratic sequencing with no mechanical fault.\u003c\/li\u003e\n\u003cli\u003eOnboard LED dark, frozen, or flashing a hard control fault.\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":63027541672307,"sku":"1183618","price":246.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047553876339,"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_dd2af77c-822a-460b-8417-b38cc9df9144.jpg?v=1782889038","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-kit-for-rgs120seca0aaa-oem-replacement-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}