{"product_id":"tempstar-hot-surface-igniter-for-t8mpn100j20a1-silicon-nitride-oem-1009524-ships-today","title":"Tempstar Hot Surface Igniter for T8MPN100J20A1 — Silicon Nitride OEM 1009524 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM hot surface igniter (part number 1009524, IGNITOR\/SENSOR HSP SK) is the silicon-nitride ignition source for the Tempstar T8MPN100J20A1 gas furnace. When the thermostat calls for heat, the control board energizes the igniter, which glows white-hot to ignite the gas at the burners. A cracked, eroded, or open igniter is the single most common cause of furnace no-heat calls. This silicon-nitride style is more durable and faster-heating than legacy silicon-carbide elements, with a typical resistance reading in the 40–75 ohm range when good.\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\u003e1009524\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHot Surface Igniter \/ Sensor (Silicon 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\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\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\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGas Furnace Ignition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect-fit replacement for the Tempstar T8MPN100J20A1 furnace and other ICP\/Heil\/Comfortmaker units that use the 1009524 silicon-nitride igniter assembly. Always confirm the part number on your existing igniter and mounting bracket before installing.\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, 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 furnace burner-compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter 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; handle the old igniter by the ceramic base only — never touch the element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter so the element sits correctly in the burner flame path, then reconnect the plug per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, run a heat cycle, and confirm the igniter glows and the burners light cleanly.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFurnace blower runs but burners never light (no-heat).\u003c\/li\u003e\n\u003cli\u003eIgniter shows visible cracks, blistering, or hot spots.\u003c\/li\u003e\n\u003cli\u003eOpen circuit \/ infinite resistance reading across the element.\u003c\/li\u003e\n\u003cli\u003eIntermittent ignition or repeated lockouts after several tries.\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":63021764575603,"sku":"1009524-GEN","price":34.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048453587315,"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_6220520e-6dc7-4594-8c48-2280d06c12cd.jpg?v=1782960185","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-hot-surface-igniter-for-t8mpn100j20a1-silicon-nitride-oem-1009524-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}