{"product_id":"icp-hot-surface-igniter-for-wpg4364090lka1-furnace-ignition-ships-today","title":"ICP Hot Surface Igniter for WPG4364090LKA1 — Furnace Ignition | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM hot surface igniter assembly for the ICP \/ Tempstar \/ Heil WPG4364090LKA1 gas\/electric packaged unit (OEM Part Nos. 1177663 igniter and 1186861 control-board igniter). The hot surface igniter is the component that glows red-hot on a heat call and lights the burner gas. When the thermostat calls for heat, the control board sends 120V to the igniter, which heats to roughly 1,800–2,500°F within a few seconds; once the flame sensor confirms ignition, the board cuts power to the igniter. Because the silicon-carbide or silicon-nitride element is brittle and cycles through extreme thermal stress on every heat call, it is one of the most frequently replaced furnace components. A cracked or worn igniter is the number-one cause of \"furnace clicks but won't light\" no-heat calls. Common symptoms include an igniter that no longer glows, visible cracks or a broken element, repeated ignition lockouts, and a furnace that draws but never lights the burners.\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\u003eOEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003e1177663 (Igniter), 1186861 (Control Board Igniter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHot Surface Igniter\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\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eDirect ignition of burner gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eWPG4364090LKA1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eThis hot surface igniter is the factory-specified ignition part for the ICP \/ Tempstar \/ Heil WPG4364090LKA1 packaged unit and is shared across many ICP-family gas\/electric and gas furnace platforms. Verify the mounting bracket orientation and connector match your existing igniter 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 — Shut off gas and disconnect electrical power, then verify zero voltage at the igniter leads with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the burner compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter position, bracket, and wire routing before removing anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector and remove the mounting screw(s). Handle by the ceramic base only — never touch the element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter so the element sits in the burner flame path, then reconnect the harness per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, place a heat call, and confirm the igniter glows and the burners light within the normal ignition window.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIgniter no longer glows on a heat call.\u003c\/li\u003e\n\u003cli\u003eVisible cracks in or a broken ceramic\/element.\u003c\/li\u003e\n\u003cli\u003eFurnace goes into repeated ignition lockout after a few tries.\u003c\/li\u003e\n\u003cli\u003eBurners draft but never light, leaving the home cold.\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":63021512786291,"sku":"WPG4364090LKA1","price":50.64,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047673282931,"sku":"WPG4364090LKA1-GEN","price":38.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-WPG4364090LKA1.jpg?v=1782893207","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-for-wpg4364090lka1-furnace-ignition-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}