{"product_id":"icp-hot-surface-igniter-for-rgs121lsab0aaaa-silicon-nitride-120v-ships-today","title":"ICP Hot Surface Igniter for RGS121LSAB0AAAA — Silicon Nitride 120V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM hot surface igniter (HSI) is the direct-fire ignition source for the ICP \/ Tempstar \/ Heil RGS121LSAB0AAAA gas furnace. When the thermostat calls for heat, the integrated furnace control energizes this 120V silicon nitride element, which glows incandescent within seconds to light the main burners. A failed igniter is one of the most common causes of no-heat calls: the element grows brittle with every heating cycle and eventually cracks, leaving the furnace to lock out after several failed ignition attempts. This listing includes OEM igniter 1171306 and the matching igniter wiring kit 1188370 so the connector and harness pigtail are replaced together for a clean, reliable connection.\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\u003eOEM Part Number\u003c\/td\u003e\n\u003ctd\u003e1171306 (Igniter), 1188370 (Wiring Kit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHot Surface Igniter (Silicon Nitride)\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\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 Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered for the ICP family RGS121LSAB0AAAA gas furnace and shared-platform Tempstar, Heil, and Comfortmaker models using the same 120V hot surface ignition system. Always confirm your OEM part number against the unit rating plate 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; verify zero voltage with a multimeter and shut off the gas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace burner\/service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter bracket position and wire routing before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter harness, remove the mounting screw, and lift out the old igniter without touching the element. Install the new wiring kit pigtail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter so it sits centered in the burner flame path; never touch the white element with bare fingers. Reconnect per your photo.\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 burners light within the ignition trial.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFurnace clicks and tries to start but never lights, then locks out\u003c\/li\u003e\n\u003cli\u003eNo visible glow at the igniter during a heat call\u003c\/li\u003e\n\u003cli\u003eVisible cracks, white powder, or breaks in the igniter element\u003c\/li\u003e\n\u003cli\u003eIntermittent heating that worsens over the season\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":"ICP","offers":[{"title":"OEM","offer_id":63027476234611,"sku":"1171306","price":42.84,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047635206515,"sku":"1171306-GEN","price":32.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-nitride-1171306_0896722d-435d-4211-96ec-a3c98629be73.jpg?v=1782892333","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-for-rgs121lsab0aaaa-silicon-nitride-120v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}