{"product_id":"icp-furnace-control-board-kit-for-rgs243ssfa0aaaa-oem-ships-today","title":"ICP Furnace Control Board Kit for RGS243SSFA0AAAA — OEM | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM control board kit (Part No. 1183618) is the brain of your ICP RGS243SSFA0AAAA gas furnace. It manages the entire heating sequence — sequencing the inducer, igniter, gas valve, and blower while continuously monitoring safety switches and flame signal. The kit includes the replacement board and the hardware needed for a clean swap. Control boards fail from heat stress, power surges, corrosion, and aged components. A failed board can cause no-heat, no-blower, erratic short-cycling, blown low-voltage fuses, or a board that won't respond to a thermostat call at all. Many boards also store fault codes via an LED that help confirm the diagnosis.\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGas Furnace Control\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\u003eDirect OEM replacement kit for the ICP \/ Tempstar \/ Heil RGS243SSFA0AAAA gas furnace. Verify the original part number 1183618 against your existing board before installing, as furnace controls are model-specific.\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 breaker and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the blower\/control compartment panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every connector and wire position before unplugging — this is critical for a multi-connector board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all harness connectors, remove the mounting screws\/standoffs, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board from the kit and reconnect every harness exactly per your photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and run a full heat cycle, watching the diagnostic LED for normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo response to a thermostat heat call\u003c\/li\u003e\n\u003cli\u003eBlower or igniter won't energize in sequence\u003c\/li\u003e\n\u003cli\u003eRepeated short-cycling or blown low-voltage fuse\u003c\/li\u003e\n\u003cli\u003eError\/fault LED codes or visible burn marks on the board\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":63027285197171,"sku":"1183618","price":284.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047567507827,"sku":"1183618-GEN","price":219.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_9f197f11-d970-4c8f-92cc-55f277631867.jpg?v=1782889575","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-kit-for-rgs243ssfa0aaaa-oem-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}