{"product_id":"icp-integrated-furnace-control-board-for-rgx036krca0aaa-ignition-control-kit-ships-today","title":"ICP Integrated Furnace Control Board for RGX036KRCA0AAA — Ignition Control Kit | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is the OEM integrated furnace control board kit (part number 1183618) for the ICP \/ Tempstar \/ Heil RGX036KRCA0AAA gas furnace. The control board is the brain of the furnace — it sequences the inducer motor, hot surface igniter, and gas valve, monitors flame through the flame sensor, manages blower on\/off timing, and runs continuous safety diagnostics. It operates on 120V line power and supplies 24V to the low-voltage control circuit. A failed board typically leaves the furnace unresponsive to a call for heat, stuck in ignition lockout, short-cycling, or flashing diagnostic LED fault codes. Replacing the board restores reliable ignition and safe, sequenced operation.\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 (KIT CONTROL BOARD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eIntegrated Furnace Control (IFC)\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\u003eLine Voltage\u003c\/td\u003e\n\u003ctd\u003e120V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\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\u003eEngineered as a direct-fit replacement for the ICP \/ Tempstar \/ Heil RGX036KRCA0AAA gas furnace. This board kit also services many related RGX-series furnaces built on the same platform across the ICP family of brands (Heil, Tempstar, Comfortmaker, Arcoaire). Confirm the part number on your existing board 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 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 blower-compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and connector on the existing board before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and unplug each harness, then 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 in the same orientation and reconnect each harness exactly per your photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for heat, and verify the full ignition sequence and blower operation with no fault codes on the diagnostic LED.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFurnace does not respond to a thermostat call for heat\u003c\/li\u003e\n\u003cli\u003eIgniter, inducer, or gas valve fails to energize in sequence\u003c\/li\u003e\n\u003cli\u003eRepeated ignition lockouts or short-cycling\u003c\/li\u003e\n\u003cli\u003eDiagnostic LED flashing a board or control fault code\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day on orders placed 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":63027268944243,"sku":"1183618","price":245.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047702053235,"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_e6cad5e0-e890-4f46-8cff-2855e56f9bbe.jpg?v=1782894886","url":"https:\/\/nationalhvacparts.com\/products\/icp-integrated-furnace-control-board-for-rgx036krca0aaa-ignition-control-kit-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}