{"product_id":"icp-hot-surface-igniter-for-rgs121lfaa0aaaa-furnace-ignitor-kit-ships-today","title":"ICP Hot Surface Igniter for RGS121LFAA0AAAA — Furnace Ignitor Kit | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM hot surface igniter is the ignition source for the ICP\/Heil\/Tempstar RGS121LFAA0AAAA gas furnace. When the thermostat calls for heat, the control board energizes this igniter, which glows red-hot to light the gas at the burners. The kit includes OEM igniter 1171306 and igniter wiring kit 1188370 for a complete, factory-correct replacement. Hot surface igniters are brittle and wear out over time — a cracked or burned-out element is one of the most common causes of a furnace that clicks but never lights. Replacing it restores reliable, on-demand ignition without the guesswork of a universal part.\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\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Heil \/ Tempstar\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\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirectly fits the ICP\/Heil\/Tempstar\/Comfortmaker RGS121LFAA0AAAA furnace and is shared across many models in the same RGS family. Always confirm your model number and the igniter mounting style 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 and shut off the gas, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace front service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photo the igniter bracket and wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector, remove the mounting screw, and lift out the old igniter without touching the element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter, install the wiring kit, and reconnect per your photo. Handle the element by the ceramic base only.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, then run a heat cycle and confirm the igniter glows and the burners light.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFurnace clicks and the inducer runs, but burners never light.\u003c\/li\u003e\n\u003cli\u003eIgniter shows cracks, blisters, or a broken element.\u003c\/li\u003e\n\u003cli\u003eNo glow when the heat cycle starts.\u003c\/li\u003e\n\u003cli\u003eIntermittent ignition or repeated lockouts on cold mornings.\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. National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63027489505651,"sku":"1171306","price":45.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047635042675,"sku":"1171306-GEN","price":34.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1171306_07810b9e-62c1-4d7b-81ae-4c35acb44520.jpg?v=1782892327","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-for-rgs121lfaa0aaaa-furnace-ignitor-kit-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}