{"product_id":"icp-hot-surface-igniter-for-wpg4604090rka1-oem-ignition-ships-today-1","title":"ICP Hot Surface Igniter for WPG4604090RKA1 — OEM Ignition | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM hot surface igniter assembly (part numbers 1186861 and 1177663) is the ignition source for the gas heating section of your ICP WPG4604090RKA1 package unit. On a call for heat, the control energizes the igniter, which glows red-hot to light the burners. Hot surface igniters are fragile and degrade with every heating cycle — the silicon carbide or nitride element develops microcracks, draws weaker current, and eventually fails to reach ignition temperature. A bad igniter is the leading cause of no-heat furnace lockouts. Replacing it restores dependable ignition and prevents repeated failed-light retries.\u003c\/p\u003e\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\u003e1186861, 1177663\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGas Furnace Ignition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM replacement for the ignition system on the ICP \/ Tempstar \/ Heil WPG4604090RKA1 package unit. Compatible with related ICP-family gas furnaces and package units using this igniter. Match the connector style and mounting bracket to your existing part before installing, and handle the element only by its ceramic base.\u003c\/p\u003e\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, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the service panel to reach the burner assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter position and wire routing before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter harness and remove the mounting screw, lifting the old igniter free without touching the element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter, handling only the ceramic base, and reconnect the harness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, then watch a full heat cycle to confirm the igniter glows and the burners light.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace blows cold air and locks out on no heat.\u003c\/li\u003e\n\u003cli\u003eIgniter does not glow, or glows weakly, during the ignition sequence.\u003c\/li\u003e\n\u003cli\u003eVisible cracks, blistering, or breaks in the igniter element.\u003c\/li\u003e\n\u003cli\u003eMultiple ignition retries before the burners finally light.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day before 3 PM CST. 30-day returns. National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63027206652275,"sku":"1186861","price":50.64,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047677018483,"sku":"1186861-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-1186861_ae43060f-2548-48b2-9c3e-005c93ed8833.jpg?v=1782893321","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-for-wpg4604090rka1-oem-ignition-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}