{"product_id":"icp-furnace-control-board-kit-for-rgs120hrab0aaa-integrated-ignition-ships-today","title":"ICP Furnace Control Board Kit for RGS120HRAB0AAA — Integrated Ignition | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM control board kit (OEM 1183618) for the ICP\/Heil\/Tempstar RGS120HRAB0AAA gas furnace is the integrated furnace control (IFC) that sequences the entire heating and cooling cycle — energizing the inducer, igniter, and gas valve in order, monitoring flame sense and limit safeties, and timing the blower on and off. It interprets 24V thermostat calls and switches the line-voltage blower and inducer relays. When the board fails from a power surge, failed relay, or burned trace, the furnace may show no response, erratic cycling, blower-only operation, or repeated flashing fault codes. This kit includes the board and mounting provisions for a direct factory-correct replacement.\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 \/ Heil \/ Tempstar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctions\u003c\/td\u003e\n\u003ctd\u003eIgnition Sequencing, Blower \u0026amp; Inducer Control, Safety Monitoring\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\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDesigned for the ICP RGS120HRAB0AAA 120,000 BTU gas furnace and related Heil, Tempstar, and Comfortmaker units that use this integrated furnace control. Match the board part number and connector layout before installing.\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 blower compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every connector, plug, and wire position on the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all harnesses and remove the mounting screws\/standoffs holding the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board and transfer each connector to its matching terminal per your photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and run a full heat cycle, confirming proper ignition sequence, flame proving, and blower operation 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 completely unresponsive to thermostat calls\u003c\/li\u003e\n\u003cli\u003eRepeated or flashing diagnostic fault codes\u003c\/li\u003e\n\u003cli\u003eBlower runs continuously or won't start\u003c\/li\u003e\n\u003cli\u003eVisible burned traces, scorched relays, or a blown onboard fuse\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":63027581026675,"sku":"1183618","price":207.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047551287667,"sku":"1183618-GEN","price":159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_8120af85-899e-4acb-b248-4a976cc3abec.jpg?v=1782888936","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-kit-for-rgs120hrab0aaa-integrated-ignition-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}