{"product_id":"icp-control-board-for-rgs180lraa0aaaa-oem-kit-1183618-24v-ships-today","title":"ICP Control Board for RGS180LRAA0AAAA — OEM Kit 1183618 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM integrated furnace control board kit (part number 1183618) for the ICP \/ Tempstar \/ Heil RGS180LRAA0AAAA gas furnace. The control board is the brain of the furnace — it manages the ignition sequence, monitors the flame sensor and pressure switch safeties, sequences the inducer and blower motors, and controls the gas valve based on thermostat demand. Operating on a 24V control signal, it coordinates every heating cycle from call-for-heat through post-purge. When a control board fails, the furnace may fail to ignite, lock out repeatedly, short-cycle, blow cold air, or stop responding to the thermostat entirely. Visible signs of failure include scorched relay contacts, cracked solder joints, blown traces, or a flashing diagnostic LED reporting an internal fault. This kit ships with the board and the mounting hardware needed for a direct 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\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eRGS180LRAA0AAAA\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\u003eDesigned as a factory-exact replacement for the ICP, Tempstar, Heil, Comfortmaker, and other ICP-family RGS180LRAA0AAAA gas furnace. Always confirm the part number printed on your existing board matches 1183618 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 furnace switch and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace service panel to expose the control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and connector position before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the low-voltage and line-voltage harnesses, release the mounting tabs or screws, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, then reconnect each harness exactly per your photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, initiate a call for heat, and confirm a full ignition cycle and the diagnostic LED reads normal.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace will not ignite or repeatedly locks out\u003c\/li\u003e\n\u003cli\u003eNo response to the thermostat or erratic blower\/inducer operation\u003c\/li\u003e\n\u003cli\u003eFlashing fault code on the board's diagnostic LED\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, melted relays, or cracked solder 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":63027335856499,"sku":"1183618","price":214.5,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047463698803,"sku":"1183618-GEN","price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_79de204b-8afb-4201-a58e-30fc2b9f3bd7.jpg?v=1782885350","url":"https:\/\/nationalhvacparts.com\/products\/icp-control-board-for-rgs180lraa0aaaa-oem-kit-1183618-24v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}