{"product_id":"icp-hot-surface-igniter-kit-for-rgs121staa0aaaa-with-wiring-harness-ships-today","title":"ICP Hot Surface Igniter Kit for RGS121STAA0AAAA — With Wiring Harness | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM igniter service kit includes the ICP hot surface igniter, part number 1171306, and the matching igniter wiring kit, part number 1188370, for the RGS121STAA0AAAA gas furnace. The hot surface igniter (HSI) glows red-hot when energized to ignite the gas at the burners on each heat call, and the included wiring harness ensures a clean, correct electrical connection back to the control board. HSIs are fragile and degrade with every heating cycle — they crack from thermal stress, vibration, or even an oily fingerprint. When the igniter fails, the furnace will go through its inducer and prepurge sequence but never light, often locking out after several failed attempts and leaving the home without heat.\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\u003eIgniter Part Number\u003c\/td\u003e\n\u003ctd\u003e1171306\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Kit Part Number\u003c\/td\u003e\n\u003ctd\u003e1188370\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHot Surface Igniter (HSI)\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\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Model\u003c\/td\u003e\n\u003ctd\u003eRGS121STAA0AAAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDesigned for the ICP\/Tempstar\/Heil RGS121STAA0AAAA furnace and other ICP-family furnaces using this hot surface igniter and harness. Confirm the igniter element shape and connector against your original 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.\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 mounting and harness routing before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the old igniter at the connector and remove its mounting screw(s). Handle the new 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 1171306 igniter, connect the 1188370 wiring kit, and route the harness clear of hot or moving parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and run a heat cycle to confirm the igniter glows and the burners light promptly.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFurnace runs the inducer but burners never ignite.\u003c\/li\u003e\n\u003cli\u003eIgniter does not glow, or glows weakly.\u003c\/li\u003e\n\u003cli\u003eVisible crack or break in the igniter element.\u003c\/li\u003e\n\u003cli\u003eRepeated ignition lockouts after several attempts.\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":63027446153587,"sku":"1171306","price":46.8,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047690453363,"sku":"1171306-GEN","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1171306_838b515a-f619-4bff-8740-841f497b2b8e.jpg?v=1782894141","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-kit-for-rgs121staa0aaaa-with-wiring-harness-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}