{"product_id":"tempstar-hot-surface-igniter-for-t8dnl075b12b1-hsi-furnace-ignitor-ships-today","title":"Tempstar Hot Surface Igniter for T8DNL075B12B1 – HSI Furnace Ignitor | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM hot surface igniter (HSI, part number 1172533) for the Tempstar T8DNL075B12B1 gas furnace. On each call for heat the control board sends voltage to the igniter, which glows white-hot to light the gas at the burners. Because the igniter element is brittle and cycles through extreme heat, it is one of the most common furnace failure points. A cracked or burned-out igniter is the usual cause of a furnace that clicks, runs its inducer, but never lights — leaving you with no heat. This OEM HSI restores reliable, consistent 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\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 (ICP \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eIGNITOR HSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eDirect ignition of burner gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelated Component\u003c\/td\u003e\n\u003ctd\u003ePairs with VR8205S snap-mount gas valve (1172821)\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-fit replacement for the Tempstar T8DNL075B12B1 furnace. This 1172533 hot surface igniter is used across ICP-family furnaces (Tempstar, Heil, Comfortmaker, Arcoaire) that use snap-mount HSI ignition with the Honeywell VR8205S gas valve. Match the mounting bracket and connector to your original 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 – Disconnect power at the furnace switch and breaker 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; lift the old igniter out without touching the ceramic element of the new one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e – Mount the new igniter handling it only by the ceramic base, align it over the burner per your photo, and reconnect the plug.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e – Restore gas and power, then run a heat cycle to confirm the igniter glows and the burners light.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInducer runs and you hear clicks, but the burners never ignite\u003c\/li\u003e\n\u003cli\u003eNo heat with the furnace cycling on a lockout\u003c\/li\u003e\n\u003cli\u003eIgniter shows visible cracks, blistering, or no glow on a call for heat\u003c\/li\u003e\n\u003cli\u003eInfinite resistance reading across the igniter terminals\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":63021780042099,"sku":"1172533-GEN","price":36.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048451490163,"sku":"1172533","price":48.04,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1172533_da935db3-24c9-408d-acff-fcbefca2b5e2.jpg?v=1782960101","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-hot-surface-igniter-for-t8dnl075b12b1-hsi-furnace-ignitor-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}