{"product_id":"icp-hot-surface-igniter-for-wfml090b042a1-oem-furnace-ignition-ships-today-1","title":"ICP Hot Surface Igniter for WFML090B042A1 — OEM Furnace Ignition | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM hot surface igniter (part 1176919) is the genuine ignition component for the ICP \/ Tempstar \/ Heil WFML090B042A1 gas furnace, supplied with the matching HSI snap-in valve component (part 1176929, 36J24618). The hot surface igniter is what starts every heating cycle: on a call for heat, the control board sends voltage to the igniter, which glows red-hot and lights the gas as it crosses the burners. Over thousands of cycles the silicon-carbide element gradually weakens and eventually cracks, at which point the furnace can no longer ignite and locks out. Typical failure symptoms include no heat on a call, burners that fail to light, repeated ignition retries, a furnace that runs the inducer and blower but never fires, and a visibly cracked or carbon-coated element. Replacing a worn igniter is one of the most common furnace repairs and restores reliable ignition.\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\u003eIgniter Part Number\u003c\/td\u003e\n\u003ctd\u003e1176919\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSI Valve Part Number\u003c\/td\u003e\n\u003ctd\u003e1176929 (36J24618)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHot Surface Igniter (HSI)\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\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM fit for the ICP \/ Tempstar \/ Heil WFML090B042A1 gas furnace. The 1176919 igniter is shared across many ICP-built WFML-series furnaces sold under the Tempstar, Heil, and Comfortmaker brands. Confirm your model and OEM part number before ordering.\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 at the furnace switch and breaker, shut off the gas, and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace burner access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter wiring and mounting position before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector, remove the mounting screw, and withdraw the old igniter without touching the ceramic element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter in the exact original position and reconnect the wiring per your photo. Never touch the silicon-carbide element with bare fingers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, run a heat call, and confirm the igniter glows and the burners light smoothly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace runs the inducer and blower but never ignites.\u003c\/li\u003e\n\u003cli\u003eVisibly cracked, chipped, or carbon-coated igniter element.\u003c\/li\u003e\n\u003cli\u003eRepeated ignition retries followed by a hard lockout.\u003c\/li\u003e\n\u003cli\u003eNo glow from the igniter during a heat call.\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":63027241681267,"sku":"1176919","price":45.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047654801779,"sku":"1176919-GEN","price":34.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1176919_a9cda9c1-c00d-4537-bda6-8f0a1c8db18b.jpg?v=1782892734","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-for-wfml090b042a1-oem-furnace-ignition-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}