{"product_id":"icp-furnace-control-board-for-wpg3604115lkc1-integrated-ignition-module-ships-today-1","title":"ICP Furnace Control Board for WPG3604115LKC1 — Integrated Ignition Module | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine OEM furnace control board (part number 1178358) paired with the ignition control module (part number 1177661) is the brain of the ICP\/Tempstar\/Heil WPG3604115LKC1. It sequences the entire heat cycle — energizing the inducer, proving the pressure switch, powering the hot surface igniter, opening the gas valve, monitoring flame, and timing the blower on and off — while watching limit and rollout safeties throughout. A failed board produces erratic or no operation: blower running constantly, no ignition sequence, flashing fault LEDs, or a completely dead furnace. The board's diagnostic LED makes it the central reference point for troubleshooting the system.\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 Numbers\u003c\/td\u003e\n\u003ctd\u003e1178358 (Circuit Board), 1177661 (Ignition Control Module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eIntegrated Furnace Control \/ Ignition Control\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\u003eFunctions\u003c\/td\u003e\n\u003ctd\u003eIgnition Sequencing, Blower Timing, Safety Monitoring, Diagnostics\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-fit OEM replacement for the ICP WPG3604115LKC1 packaged gas\/electric unit and related Tempstar, Heil, and Comfortmaker furnaces using the same integrated control platform. Match the part number and connector layout to 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 disconnect and thermostat, and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control\/electrical access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every harness, plug, and terminal on the existing board before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all connectors, note any DIP\/jumper settings, and unscrew the board from its standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, replicate any switch settings, 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, confirming proper ignition sequence, blower timing, and a steady diagnostic LED.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo ignition sequence despite a valid heat call\u003c\/li\u003e\n\u003cli\u003eBlower runs continuously or never starts\u003c\/li\u003e\n\u003cli\u003eFlashing fault LED or no LED at all\u003c\/li\u003e\n\u003cli\u003eIntermittent, random, or completely dead operation\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":63027216089459,"sku":"1178358","price":227.5,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047538835827,"sku":"1178358-GEN","price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1178358_00422223-95cb-47f1-929d-8a882a2b272f.jpg?v=1782888609","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-for-wpg3604115lkc1-integrated-ignition-module-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}