{"product_id":"icp-furnace-control-board-kit-for-rgs120sfab0aaa-oem-integrated-control-ships-today","title":"ICP Furnace Control Board Kit for RGS120SFAB0AAA - OEM Integrated Control | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM control board kit (Part No. 1183618) is the integrated furnace control (IFC) brain of the ICP \/ Tempstar \/ Heil RGS120SFAB0AAA gas furnace. It manages the entire heating sequence: it reads the thermostat call, energizes the inducer, monitors the pressure switch and limit safeties, fires the hot surface igniter and gas valve, times the blower on and off delays, and flashes diagnostic fault codes through its onboard LED. Because the board ties every major component together, a failed board can mimic almost any furnace problem - no ignition, no blower, short cycling, or a unit that is completely dead. The kit form includes the hardware needed for a clean swap. Before replacing the board, confirm with the LED fault code and component testing that the board itself, not a downstream part, is the failure.\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\u003eFunctions\u003c\/td\u003e\n\u003ctd\u003eIgnition, blower timing, safety sequencing, diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eOnboard LED fault codes\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\u003eEngineered for the ICP \/ Tempstar \/ Heil RGS120SFAB0AAA gas furnace and other ICP-family units that use this integrated furnace control. Always match OEM part number 1183618 and compare connector layout to 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 with a multimeter before touching the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e - Remove the furnace control\/blower compartment door to expose the control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e - Photograph every connector, plug, and wire location on the old board before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e - Unplug all harnesses, remove the mounting screws, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e - Mount the new board and reconnect each harness to its matching terminal per your photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e - Restore gas and power, run a full heat cycle, and verify ignition, blower timing, and a normal LED status 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\u003eFurnace is completely dead with no LED status light\u003c\/li\u003e\n\u003cli\u003eInducer, igniter, or blower fails to energize despite good components\u003c\/li\u003e\n\u003cli\u003ePersistent or nonsensical fault codes that don't match field testing\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, corrosion, or cracked traces\/relays 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":63027541049715,"sku":"1183618","price":218.4,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047554007411,"sku":"1183618-GEN","price":168.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_d1799d24-1ea8-44de-916e-433fc3a7f24e.jpg?v=1782889043","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-kit-for-rgs120sfab0aaa-oem-integrated-control-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}