{"product_id":"icp-furnace-control-board-kit-for-rgs120heab0aaa-integrated-ignition-control-ships-today","title":"ICP Furnace Control Board Kit for RGS120HEAB0AAA — Integrated Ignition Control | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM integrated furnace control board kit (part #1183618) is the brain of your ICP, Heil, or Tempstar RGS120HEAB0AAA 120,000 BTU gas furnace. It sequences the entire heat cycle — inducer draft, igniter warm-up, gas valve timing, flame sensing, and blower on\/off delays — while monitoring safeties and flashing diagnostic fault codes. A failed board causes intermittent no-heat, blower or inducer that won't start or won't stop, or repeated hard lockouts. Because the board ties together 24V control and 120V line-voltage loads, it is a frequent failure point after voltage spikes, lightning, or aged relays.\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 Ignition Control Board\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\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine Voltage\u003c\/td\u003e\n\u003ctd\u003e120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eBuilt for the ICP\/Heil\/Tempstar RGS120HEAB0AAA 120K BTU gas furnace and related RGS120 series units. Verify the board part number printed on your existing control 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 switch and breaker; verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the blower\/control compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and terminal position on the existing board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all connectors and the molex harness, remove the mounting screws, and lift the old board out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board and reconnect every wire exactly per your photo and the wiring diagram.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a full heat cycle, and confirm the diagnostic LED shows normal 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\u003eIntermittent or complete furnace no-heat with no other failed parts\u003c\/li\u003e\n\u003cli\u003eBlower or inducer motor won't start or won't shut off\u003c\/li\u003e\n\u003cli\u003eDiagnostic LED dark, or flashing internal control fault codes\u003c\/li\u003e\n\u003cli\u003eBurners light then immediately drop out despite a good flame sensor\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":63027598918003,"sku":"1183618","price":245.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047550730611,"sku":"1183618-GEN","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_54945633-5b06-44a9-82ab-3b8ce52e832d.jpg?v=1782888915","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-kit-for-rgs120heab0aaa-integrated-ignition-control-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}