{"product_id":"icp-hot-surface-igniter-for-z9mp1075b12b1-hsi-furnace-ships-today-1","title":"ICP Hot Surface Igniter for Z9MP1075B12B1 — HSI Furnace | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM hot surface igniter (HSI, part number 1172533) for the ICP\/Tempstar\/Heil Z9MP1075B12B1 gas furnace. On each call for heat, the control board energizes the igniter, which glows red-hot to ignite the gas at the burners. The HSI is one of the most frequently replaced furnace parts because the brittle silicon-carbide or silicon-nitride element degrades with every ignition cycle and eventually cracks or fails to reach ignition temperature. A bad igniter is the leading cause of a furnace that clicks, draws, but produces no heat. This listing pairs with the related flame sensor (1172543) and gas valve (1172541) used on the same Z9MP1075B12B1 ignition system for a complete repair.\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\u003e1172533 (HSI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHot Surface Igniter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Tempstar \/ Heil\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\u003ctr\u003e\n\u003ctd\u003eRelated Parts\u003c\/td\u003e\n\u003ctd\u003e1172543 Flame Sensor, 1172541 Gas Valve (VR8205S)\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\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eBuilt as the factory replacement igniter for the ICP\/Tempstar\/Heil Z9MP1075B12B1 furnace and compatible ICP-family models that use the same HSI ignition assembly. The companion flame sensor (1172543) and Honeywell VR8205S-type snap-mount gas valve (1172541) are part of the same ignition train for this model.\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 the gas, disconnect furnace power at the switch and breaker, and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace burner-compartment door.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter bracket position and the ignition 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). Handle the new igniter only by its ceramic base — never touch the element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter at the correct depth\/position over the burner and reconnect the harness per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, start a heat cycle, and confirm the igniter glows and 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 heat)\u003c\/li\u003e\n\u003cli\u003eIgniter no longer glows or glows weakly during the ignition sequence\u003c\/li\u003e\n\u003cli\u003eVisible cracks, chips, or a broken element on the old igniter\u003c\/li\u003e\n\u003cli\u003eFurnace short-cycles or locks out on repeated failed ignition attempts\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":"ICP","offers":[{"title":"OEM","offer_id":63027186631027,"sku":"1172533","price":50.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047680065907,"sku":"1172533-GEN","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1172533_1741d148-3bd5-44e5-9594-cbbad13cda87.jpg?v=1782893448","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-for-z9mp1075b12b1-hsi-furnace-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}