{"product_id":"tempstar-hot-surface-igniter-for-tck125n20a1-silicon-nitride-ships-today","title":"Tempstar Hot Surface Igniter for TCK125N20A1 — Silicon Nitride | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe genuine OEM hot surface igniter (part #1009524, IGNITOR\/SENSOR HSP) for the Tempstar TCK125N20A1 gas furnace. This silicon nitride hot surface igniter glows to roughly 2,500°F to ignite the gas at the burners on each call for heat, and on this platform it also serves the flame-proving sensing function. Hot surface igniters are the most common furnace heating failure: the brittle element cracks from thermal cycling, vibration, or being touched during service. A cracked igniter produces no glow, an open circuit, and a furnace that will not light.\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\u003e1009524\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHot Surface Igniter \/ Sensor (HSI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElement\u003c\/td\u003e\n\u003ctd\u003eSilicon nitride\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\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM exact 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\u003eBuilt for the Tempstar TCK125N20A1 and used across many ICP-family furnaces (Tempstar, Heil, Comfortmaker, Arcoaire). Match the mounting bracket and 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 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 position, bracket, and wire routing before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector, remove the mounting screw, and carefully lift out the old igniter, handling it only by the ceramic base — never the element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Set the new igniter in the exact factory position, secure the screw, and reconnect the plug. Do not touch the silicon nitride element with bare fingers.\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 the burners light cleanly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace tries to start but burners never light (no glow)\u003c\/li\u003e\n\u003cli\u003eVisible crack or break in the igniter element\u003c\/li\u003e\n\u003cli\u003eOpen circuit \/ no continuity across the igniter\u003c\/li\u003e\n\u003cli\u003eRepeated ignition lockouts after several retries\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021649592691,"sku":"1009524-GEN","price":34.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048457781619,"sku":"1009524","price":45.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-nitride-1009524_90f44009-c3f1-47d0-a3bb-8773277e0744.jpg?v=1782960348","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-hot-surface-igniter-for-tck125n20a1-silicon-nitride-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}