{"product_id":"icp-hot-surface-igniter-for-wpg4484090rkb1-furnace-ignition-ships-today","title":"ICP Hot Surface Igniter for WPG4484090RKB1 — Furnace Ignition | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis genuine OEM hot surface igniter (parts #1186861 and #1177663) is the ignition source for the heating section of the ICP\/Tempstar\/Heil WPG4484090RKB1 packaged gas\/electric unit. On a call for heat, the control board sends 120V to the igniter element, which glows to roughly 2,000°F and lights the burner gas. Hot surface igniters are brittle silicon-carbide or silicon-nitride elements that degrade with every cycle and eventually crack, develop hairline fractures, or fail to reach ignition temperature. The result is no heat, repeated ignition lockouts, or a furnace that tries several times before locking out. Replacing the igniter at the first sign of weak or delayed ignition prevents nuisance no-heat calls and protects the heat exchanger from delayed-ignition flame rollout.\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 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 \/ Tempstar \/ Heil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eFurnace \/ Gas Heat Section\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eWPG4484090RKB1\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 factory replacement for the ICP, Tempstar, Heil, and Comfortmaker WPG4484090RKB1 packaged unit. Match the mounting bracket and connector orientation to your existing igniter before installing — the element is fragile and should only be handled by the ceramic base.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power and shut off the gas, then verify zero voltage 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 disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector and remove the mounting screw; handle only by the ceramic base, never the element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter at the same depth and angle, then reconnect the plug per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and gas, run a heat cycle, and confirm the element glows and lights the burners promptly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo heat — burners never light on a call for heat\u003c\/li\u003e\n\u003cli\u003eFurnace locks out after several failed ignition attempts\u003c\/li\u003e\n\u003cli\u003eIgniter glows weakly, unevenly, or not at all\u003c\/li\u003e\n\u003cli\u003eVisible crack or hairline fracture in the element\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":63021504135539,"sku":"WPG4484090RKB1","price":55.84,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047675314547,"sku":"WPG4484090RKB1-GEN","price":42.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-WPG4484090RKB1.jpg?v=1782893274","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-for-wpg4484090rkb1-furnace-ignition-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}