{"product_id":"icp-furnace-control-board-kit-for-rgs303stea0aaaa-ships-today","title":"ICP Furnace Control Board Kit for RGS303STEA0AAAA | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM control board kit (part number 1183618) for the ICP \/ Heil \/ Tempstar RGS303STEA0AAAA gas furnace. The integrated furnace control board is the brain of the system: it manages the ignition sequence, sequences the inducer and blower, monitors safety limits and flame, and runs the diagnostic LED fault codes. Because it ties every major component together, a failed board can present as almost any symptom — no ignition, no blower, short cycling, or random lockouts. The kit ships with the required mounting hardware and instructions so you can drop it in as a complete assembly. Always read the stored fault code and confirm the board is the failure before replacing it.\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 \/ Heil \/ Tempstar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eIgnition, blower\/inducer sequencing, safety \u0026amp; diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM\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 replacement kit for the ICP \/ Heil \/ Tempstar RGS303STEA0AAAA furnace. ICP-family boards are model-specific — verify the kit part number against your existing board and the unit rating plate 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 control-compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every connector and wire harness on the old board before unplugging anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the harnesses, release the standoffs\/screws, and lift out the failed board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board on its standoffs and reconnect each harness to the matching terminal per your photos and the included diagram.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a full heat cycle, and confirm correct ignition, blower operation, and a normal diagnostic LED.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo response on a call for heat with no LED activity or a hard fault code pointing to the board\u003c\/li\u003e\n\u003cli\u003eInducer or blower fails to sequence correctly\u003c\/li\u003e\n\u003cli\u003eRandom short cycling or lockouts not traced to a sensor or igniter\u003c\/li\u003e\n\u003cli\u003eVisible scorching, burnt relays, or corrosion 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":63027270254963,"sku":"1183618","price":240.5,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047570358643,"sku":"1183618-GEN","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_aae37636-5303-4828-8fa6-cfebb6623400.jpg?v=1782889738","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-kit-for-rgs303stea0aaaa-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}