{"product_id":"tempstar-hot-surface-igniter-for-t9uhx100l20a2-hsi-120v-ships-today","title":"Tempstar Hot Surface Igniter for T9UHX100L20A2 — HSI 120V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM hot surface igniter (HSI, part #1172533) is the component that lights the burners in your Tempstar T9UHX100L20A2 gas furnace. On each heat call the control board energizes the igniter, which glows white-hot to ignite gas at the burners. Because the silicon-carbide or silicon-nitride element is heated and cooled hundreds of times per season, it becomes brittle and is one of the most frequent no-heat failure points. Symptoms of a failed igniter include the furnace blower running with no flame, no glow at the igniter on a heat call, repeated ignition lockouts, or the system short-cycling on a failed ignition sequence. Related gas valve 1175705 (VR8205S) is used in the same ignition circuit.\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 Number\u003c\/td\u003e\n\u003ctd\u003e1172533\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\u003eTempstar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelated Gas Valve\u003c\/td\u003e\n\u003ctd\u003e1175705 (Honeywell VR8205S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM\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 replacement igniter for the Tempstar T9UHX100L20A2 gas furnace and matching ICP\/Heil\/Comfortmaker variants using the same HSI assembly. Match the mounting bracket and plug connector to your existing igniter 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 gas and disconnect power to the furnace, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace burner\/service panel to reach the igniter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter position, wire routing, and connector before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector and remove the mounting screw; handle by the ceramic base only, never the element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter, taking care not to touch the element with bare fingers, and reconnect the plug.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, call for heat, and confirm the igniter glows and lights the burners.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlower runs but burners never light (no heat)\u003c\/li\u003e\n\u003cli\u003eNo glow at the igniter on a heat call\u003c\/li\u003e\n\u003cli\u003eVisible cracks or breaks in the igniter element\u003c\/li\u003e\n\u003cli\u003eRepeated ignition lockouts or short-cycling\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":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021676626291,"sku":"1172533-GEN","price":33.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048457388403,"sku":"1172533","price":42.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1172533_0fcafc2e-dc4a-4396-bf0f-1e8a629e848e.jpg?v=1782960332","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-hot-surface-igniter-for-t9uhx100l20a2-hsi-120v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}