{"product_id":"tempstar-hot-surface-igniter-sensor-for-t9mpv125l20b1-silicon-nitride-hsp-ships-today","title":"Tempstar Hot Surface Igniter\/Sensor for T9MPV125L20B1 — Silicon Nitride HSP | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM hot surface igniter\/sensor, part number 1009524, is a silicon-nitride HSP-style ignition and flame-sensing component for the Tempstar T9MPV125L20B1 two-stage gas furnace. It lights the burners on a heat call and then helps confirm flame presence, so the control board can keep the gas valve open. Silicon-nitride igniters are durable but still the most-replaced furnace part — they crack from thermal cycling, oil contamination from bare-handed handling, or impact. When this part fails the furnace will run the inducer and blower but never produce heat, or will short-cycle into lockout when flame is not proven.\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 (IGNITOR\/SENSOR HSP SK)\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\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\u003eTwo-stage gas furnace ignition \u0026amp; flame sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM direct 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 T9MPV125L20B1 9-series two-stage variable-speed gas furnace and shared across the ICP \/ Heil \/ Comfortmaker family that uses the 1009524 silicon-nitride igniter\/sensor. Always confirm the part number on your existing igniter 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 bracket, wiring, and connector before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the harness, remove the mounting screw, and lift out the old igniter without touching the ceramic element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new igniter\/sensor in the bracket, handling it only by the base, secure the screw, and reconnect the harness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, then watch a full ignition cycle to confirm the igniter glows, the burners light, and flame stays proven.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace runs the blower but produces no heat.\u003c\/li\u003e\n\u003cli\u003eIgniter shows visible cracks or no longer glows.\u003c\/li\u003e\n\u003cli\u003eShort-cycling or lockout because flame is not proven.\u003c\/li\u003e\n\u003cli\u003eBurners fail to light despite an open gas valve.\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":63021678395763,"sku":"1009524-GEN","price":38.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048462991731,"sku":"1009524","price":49.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-nitride-1009524_c7c56444-c65a-4e61-9ec4-032286899304.jpg?v=1782960488","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-hot-surface-igniter-sensor-for-t9mpv125l20b1-silicon-nitride-hsp-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}