{"product_id":"icp-hot-surface-igniter-for-wfml090b042b2-hsi-kit-ships-today","title":"ICP Hot Surface Igniter for WFML090B042B2 — HSI Kit | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM hot surface igniter assembly for the ICP Tempstar Heil WFML090B042B2 gas furnace. The kit covers the igniter (part #1176919), its mounting bracket (#1183455), and the snap-in HSI valve assembly (#1176929, ref 36J24618). On each call for heat, the control board energizes the igniter, which glows red-hot and ignites the gas as it leaves the burners. Hot surface igniters are brittle and consumable — they degrade with every heating cycle and are one of the most common no-heat failure points on a modern furnace. A cracked or burned-out igniter will not glow, leaving the furnace to lock out after several failed ignition attempts.\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\u003eBracket Part Number\u003c\/td\u003e\n\u003ctd\u003e1183455\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSnap-In HSI Valve\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\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered as a direct OEM replacement igniter assembly for the ICP Tempstar Heil WFML090B042B2 gas furnace. These igniter and bracket part numbers are shared across many ICP-family furnaces marketed as Tempstar, Heil, Comfortmaker, and Arcoaire. Verify your existing igniter style and bracket footprint against the parts shown 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 — Shut off gas and disconnect power at the furnace switch and breaker, 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 to expose the igniter at the burner assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter wiring, connector routing, and bracket orientation before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector and unscrew the igniter\/bracket. Handle by the ceramic base only — never touch the silicon-carbide element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter and bracket, route the harness clear of the burner flame, and reconnect per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, initiate a call for heat, and confirm the igniter glows and the burners light cleanly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace attempts ignition with no flame, then locks out after multiple tries.\u003c\/li\u003e\n\u003cli\u003eIgniter does not glow during the ignition sequence.\u003c\/li\u003e\n\u003cli\u003eVisible cracks, blisters, or white spots on the igniter element.\u003c\/li\u003e\n\u003cli\u003eIntermittent ignition or delayed, rough light-off with a gas smell.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63021584351603,"sku":"1183455","price":54.6,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047654867315,"sku":"1183455-GEN","price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1183455_bdaf435d-7dba-4ef0-bd82-8ad8c68033f8.jpg?v=1782892736","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-for-wfml090b042b2-hsi-kit-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}