{"product_id":"icp-ignition-control-board-for-wpg3484115lkc1-oem-1178358-ships-today-1","title":"ICP Ignition Control Board for WPG3484115LKC1 — OEM 1178358 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM ignition control board (circuit board part number 1178358, with ignition control module 1177661) is the brain of the ICP\/Tempstar\/Heil WPG3484115LKC1 packaged gas unit. It manages the heating sequence — energizing the inducer, proving the pressure switch, timing the hot surface igniter, opening the gas valve, monitoring flame, and controlling the blower on\/off timing — while running safety lockouts and flashing diagnostic fault codes via its LED. A failed board produces erratic behavior: no ignition sequence, blower or inducer that won't start, or a unit that lights and then locks out on a false flame fault.\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 Ignition Control Board\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\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eFurnace \/ Packaged Gas Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect-fit replacement for the ICP\/Tempstar\/Heil\/Comfortmaker WPG3484115LKC1 packaged gas\/electric unit and related WPG-series models using OEM board 1178358 with ignition control module 1177661.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power and 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 connector and wire location on the existing board before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all harnesses and spade terminals, then remove the board mounting screws\/standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board and transfer each connection one at a time, matching your photo exactly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for heat, and verify the full sequence runs and the diagnostic LED shows normal status.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo response to a heat call — inducer and igniter never sequence\u003c\/li\u003e\n\u003cli\u003eDiagnostic LED dark, or flashing a hardware\/internal fault code\u003c\/li\u003e\n\u003cli\u003eBlower or inducer runs continuously or not at all\u003c\/li\u003e\n\u003cli\u003eVisible burnt traces, scorched relays, or corrosion 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":63027218055539,"sku":"1178358","price":245.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047699366259,"sku":"1178358-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-1178358_0ee7c4c1-46a6-4581-8c64-766b4cea4d9d.jpg?v=1782894710","url":"https:\/\/nationalhvacparts.com\/products\/icp-ignition-control-board-for-wpg3484115lkc1-oem-1178358-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}