{"product_id":"icp-control-board-kit-for-rgs300lrea0aaaa-oem-furnace-ignition-control-ships-today","title":"ICP Control Board Kit for RGS300LREA0AAAA — OEM Furnace Ignition Control | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis genuine OEM control board kit (part number 1183618) is the furnace ignition control for the ICP \/ Heil \/ Tempstar RGS300LREA0AAAA. The control board is the brain of the furnace — it sequences the ignition cycle, energizes the inducer and igniter, opens the gas valve, monitors flame and limit safeties, and controls blower timing. When the board fails, you may see no response to a heat call, erratic blower behavior, repeated lockouts, or blinking diagnostic LED fault codes that point to a control problem. This kit ships with the matched OEM board and the hardware needed for a clean swap, restoring proper ignition sequencing and safety monitoring.\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 Ignition 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 Sequencing, 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-fit OEM replacement for the ICP \/ Heil \/ Tempstar RGS300LREA0AAAA and shared furnace platforms that use control board kit 1183618. Verify your existing board's part number and connector layout before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Shut off gas and 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 control-compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every harness connection and note any DIP switch or jumper positions before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all connectors and remove the board mounting screws or standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, transfer DIP\/jumper settings to match, and reconnect each harness per your photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, run a full heat cycle, and confirm correct ignition, blower timing, and no fault codes.\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 from the furnace on a call for heat.\u003c\/li\u003e\n\u003cli\u003eBlinking diagnostic LED showing a control or ignition fault.\u003c\/li\u003e\n\u003cli\u003eRepeated lockouts even with a good igniter and flame sensor.\u003c\/li\u003e\n\u003cli\u003eErratic blower operation or burned\/scorched spots 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":63027279266163,"sku":"1183618","price":240.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047478051187,"sku":"1183618-GEN","price":184.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_a3727dae-4ecb-4cc5-9b23-6be796915d71.jpg?v=1782885890","url":"https:\/\/nationalhvacparts.com\/products\/icp-control-board-kit-for-rgs300lrea0aaaa-oem-furnace-ignition-control-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}