{"product_id":"tempstar-hot-surface-igniter-for-t8mpn050b12b2-hsi-ignition-kit-ships-today","title":"Tempstar Hot Surface Igniter for T8MPN050B12B2 — HSI Ignition Kit | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine OEM hot surface igniter (part number 1172533) is the ignition element for the Tempstar T8MPN050B12B2 gas furnace, and is offered alongside the matching Honeywell VR8205S HSI snap-mount gas valve (part number 1175705) used in the same ignition system. On a call for heat, the control board energizes the igniter; it glows red-hot and lights the gas at the burners as the gas valve opens. Hot surface igniters wear out from repeated thermal cycling — the element gradually becomes brittle and eventually cracks, leaving the furnace unable to light. Installing the correct OEM igniter restores fast, dependable ignition.\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 (Igniter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompanion Part\u003c\/td\u003e\n\u003ctd\u003e1175705 — VR8205S HSI Snap Gas Valve\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\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eBurner Ignition\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\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eBuilt as the factory hot surface igniter for the Tempstar T8MPN050B12B2 and shared across related ICP\/Heil\/Tempstar furnace platforms that use the VR8205S HSI ignition system. Confirm the igniter part number and connector style against your existing unit before ordering.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the furnace switch and breaker 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 mounting position and wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector and remove the mounting screw(s); handle the old igniter by the ceramic base only.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter without touching the element, then reconnect the harness per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and run a heating cycle; confirm the igniter glows, the burners light, and the flame holds.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInducer runs and the board calls for ignition, but burners never light.\u003c\/li\u003e\n\u003cli\u003eVisible crack or break in the igniter element.\u003c\/li\u003e\n\u003cli\u003eIgniter fails to glow during the ignition sequence.\u003c\/li\u003e\n\u003cli\u003eFurnace locks out after multiple failed ignition attempts.\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":63021776109939,"sku":"1172533-GEN","price":36.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048452997491,"sku":"1172533","price":46.8,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1172533_7383a1d3-2b2d-493b-b1c2-e06ab297c6c5.jpg?v=1782960162","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-hot-surface-igniter-for-t8mpn050b12b2-hsi-ignition-kit-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}