{"product_id":"icp-hot-surface-igniter-for-wfmr090b042b1-silicon-nitride-hsi-kit-ships-today-1","title":"ICP Hot Surface Igniter for WFMR090B042B1 — Silicon Nitride HSI Kit | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM hot surface igniter (HSI) is the ignition source for the ICP\/Tempstar\/Heil WFMR090B042B1 gas furnace. On a heat call, the control board energizes the igniter, which glows to roughly 2,000°F and lights the gas burners. The kit includes the silicon-nitride igniter element (OEM 1176919) and its mounting bracket (OEM 1183455). A cracked or open igniter is a leading cause of no-heat failures: the furnace purges, fails to light, retries, and finally locks out. Installing a fresh igniter restores dependable single-attempt ignition and ends nuisance lockouts.\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 Number\u003c\/td\u003e\n\u003ctd\u003e1176919 (Igniter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Bracket\u003c\/td\u003e\n\u003ctd\u003e1183455 (Igniter Bracket)\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\u003eElement\u003c\/td\u003e\n\u003ctd\u003eSilicon Nitride\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\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eWFMR090B042B1\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\u003eDesigned for the ICP-family WFMR090B042B1 gas furnace and interchangeable across the ICP, Tempstar, Heil, and Comfortmaker models that share this ignition platform. Confirm the part number against your unit's rating plate 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 the gas and disconnect electrical power at the furnace switch and breaker; verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace burner-compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter wiring and bracket position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector, remove the bracket screw(s), and withdraw the old igniter without touching the element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter and bracket, handling the element by the ceramic base only, and reconnect the plug per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, run a heat cycle, and confirm the igniter glows and lights the burners on the first attempt.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace fails to light and locks out after several tries\u003c\/li\u003e\n\u003cli\u003eIgniter is visibly cracked, blistered, or no longer glows\u003c\/li\u003e\n\u003cli\u003eIntermittent no-heat calls, especially in cold weather\u003c\/li\u003e\n\u003cli\u003eResistance reads open or out of spec on a multimeter\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":63027238535539,"sku":"1183455","price":44.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047659454835,"sku":"1183455-GEN","price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-nitride-1183455_5ae7443c-e46e-4947-b4b3-ccd23cc75169.jpg?v=1782892827","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-for-wfmr090b042b1-silicon-nitride-hsi-kit-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}