{"product_id":"tempstar-hot-surface-igniter-for-t8mpt050b12b1-oem-hsi-furnace-igniter-ships-today","title":"Tempstar Hot Surface Igniter for T8MPT050B12B1 — OEM HSI Furnace Igniter | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM hot surface igniter (part number 1172533) is the factory ignition element for the Tempstar T8MPT050B12B1 two-stage gas furnace. The 120V HSI glows red-hot on each heat call to light the burner gas, working in concert with the furnace's Honeywell VR8205Q two-stage hot-surface gas valve (OEM 1172822) and control board. A failed igniter is the leading cause of a no-heat call: the control runs the inducer, opens the valve only if it sees a valid igniter, and locks out if the element is cracked or open. This igniter is the correct direct replacement when the original is eroded, fractured, or no longer drawing current.\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 platform)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePairs With\u003c\/td\u003e\n\u003ctd\u003eVR8205Q 2-Stage Gas Valve (OEM 1172822)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2-Stage Gas Furnace Ignition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM 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 for the Tempstar T8MPT050B12B1 furnace and the shared ICP \/ Heil \/ Comfortmaker two-stage platform using the VR8205Q hot-surface ignition system. Confirm your model and serial on the rating plate 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 burner compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter position and harness routing before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector, remove the mounting screw, and lift out the old igniter by its ceramic base only — never touch the element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Position the new igniter in the burner flame path, secure the screw, and reconnect the harness per your photo.\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 both stages light correctly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo heat — burners never ignite while the inducer cycles\u003c\/li\u003e\n\u003cli\u003eControl locks out with an ignition-failure fault code\u003c\/li\u003e\n\u003cli\u003eVisible crack, hot-spot blistering, or erosion on the element\u003c\/li\u003e\n\u003cli\u003eIgniter fails to glow, or glows dim\/uneven, on 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":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021728301427,"sku":"1172533-GEN","price":32.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048454144371,"sku":"1172533","price":42.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1172533_fd8d3e87-d81d-4925-b56a-102a0473f5dd.jpg?v=1782960206","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-hot-surface-igniter-for-t8mpt050b12b1-oem-hsi-furnace-igniter-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}