{"product_id":"tempstar-hot-surface-igniter-for-t9mvx040f12a1-hsi-ignition-ships-today","title":"Tempstar Hot Surface Igniter for T9MVX040F12A1 — HSI Ignition | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM hot surface igniter (HSI, part #1172533) lights the burners on your Tempstar T9MVX040F12A1 two-stage gas furnace. On a heat call the control board energizes the igniter, which glows red-hot and ignites gas released by the VR8205Q two-stage gas valve (#1172822). HSI elements are brittle and degrade with every heating cycle, so they are one of the most common no-heat failure points. A cracked or burned-out igniter is the typical cause when the inducer and gas valve cycle but the burners never light, often leaving the furnace locked out on ignition failure.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\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\u003eIgnition System\u003c\/td\u003e\n\u003ctd\u003e2-Stage Gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelated Gas Valve\u003c\/td\u003e\n\u003ctd\u003e1172822 (VR8205Q, 2-stage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect OEM fit for the Tempstar T9MVX040F12A1 variable-speed gas furnace and is shared across many ICP-family furnaces under the Tempstar, Heil, Comfortmaker, and Arcoaire brands. Handle the silicon-nitride element only by its ceramic base — skin oils shorten its life. Verify the printed part number before ordering.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Shut off gas and disconnect electrical power at the switch and breaker; 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's position, bracket orientation, and wire harness before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector and remove the mounting screw(s); lift the element out without touching the ceramic tip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new igniter at the correct depth over the burner, secure the bracket, and reconnect the harness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, then watch a full cycle to confirm the igniter glows and the burners light promptly.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInducer and gas valve cycle but burners never ignite\u003c\/li\u003e\n\u003cli\u003eFurnace locks out on ignition-failure code after several tries\u003c\/li\u003e\n\u003cli\u003eVisible crack, split, or burned spot on the igniter element\u003c\/li\u003e\n\u003cli\u003eIgniter shows no glow or measures open\/out-of-spec resistance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\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":63021677511027,"sku":"1172533-GEN","price":34.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048456798579,"sku":"1172533","price":44.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1172533_3b711c5d-4cc0-43b0-bfa1-40e4c2b0ca57.jpg?v=1782960310","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-hot-surface-igniter-for-t9mvx040f12a1-hsi-ignition-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}