{"product_id":"icp-furnace-control-board-kit-for-rgs120hecb0aaa-oem-replacement-ships-today","title":"ICP Furnace Control Board Kit for RGS120HECB0AAA — OEM Replacement | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe ICP OEM control board kit (part number 1183618) is the brain of your gas furnace. It manages the entire heating sequence — reading the thermostat call, sequencing the inducer, energizing the hot surface igniter, opening the gas valve, monitoring flame sense and safety limits, and timing the blower on and off. A failed board can leave the furnace completely dead, stuck in lockout, or short-cycling. Because the board interfaces with nearly every component, intermittent faults (no ignition, blower won't start, random shutdowns, flashing diagnostic LED codes) frequently trace back to a failing control board. This OEM kit restores correct factory sequencing and includes the mounting hardware needed for a clean swap.\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\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eIgnition, Gas Valve, Blower \u0026amp; Safety Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGas Furnace\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM fit for the ICP \/ Tempstar \/ Heil RGS120HECB0AAA gas furnace and related ICP-family units that specify board kit 1183618. Verify the original board part number and connector layout 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 power at the breaker and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace control\/blower compartment panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every connector and wire location on the existing board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all harnesses one at a time and unscrew the old board from its standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board and reconnect each harness exactly per your photo; match any DIP\/jumper settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a full heat cycle, and confirm proper ignition, flame sense, and blower timing.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace completely unresponsive to thermostat calls.\u003c\/li\u003e\n\u003cli\u003eDiagnostic LED flashing a control\/hardware fault code.\u003c\/li\u003e\n\u003cli\u003eRandom short-cycling or no blower operation.\u003c\/li\u003e\n\u003cli\u003eBurnt smell, scorch marks, or visible damage 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":63027593118067,"sku":"1183618","price":214.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047550894451,"sku":"1183618-GEN","price":164.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_fb47cbf9-0e2f-4f36-8bed-2a702e02b779.jpg?v=1782888922","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-kit-for-rgs120hecb0aaa-oem-replacement-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}