{"product_id":"lennox-18g89-flame-sensor","title":"Lennox 18G89 Flame Sensor for G12, G16, G20, G23 models","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 18G89 Flame Sensor for G12, G16, G20, G23 models\u003c\/strong\u003e is a Lennox flame sensor for HVAC repair and replacement work. Use it when the part number \u003cstrong\u003e18G89\u003c\/strong\u003e and the listed specifications match the equipment being serviced.\u003c\/p\u003e\n\u003cp\u003e18G89 is an official OEM Flame Sensor for G12, G16, G20, G23 models for Lennox HVAC equipment.\u003c\/p\u003e\n\u003ch3\u003eKey Specs\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Flame Sensor\u003c\/li\u003e\u003c\/ul\u003e\n\n\u003ch3\u003eExpert Verdict\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eReviewed by the SuperArbor Pro Desk:\u003c\/strong\u003e choose this part when the existing component label and unit documentation match 18G89 and the spec set above. It is best suited for targeted HVAC service repairs where exact fitment matters more than broad universal compatibility.\u003c\/p\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\u003ch4\u003eWhat is the Lennox 18G89 used for?\u003c\/h4\u003e\u003cp\u003eIt is a flame sensor for compatible Lennox HVAC equipment. Match the part number 18G89 and the equipment service literature before ordering or installing.\u003c\/p\u003e\u003ch4\u003eWhich specs should I verify before purchase?\u003c\/h4\u003e\u003cp\u003eVerify the spec set shown for this part: Product Type: Flame Sensor. The replacement should match the existing component and the unit documentation.\u003c\/p\u003e\u003ch4\u003eHow do I confirm this is the right replacement?\u003c\/h4\u003e\u003cp\u003eCompare the part number 18G89, the flame sensor description, and any unit model references with the original component and the service manual.\u003c\/p\u003e\u003ch4\u003eIs this an OEM-style replacement part?\u003c\/h4\u003e\u003cp\u003eUse it as a direct replacement only when Lennox documentation lists 18G89 or an approved equivalent for the unit being serviced.\u003c\/p\u003e\u003ch4\u003eWho should install this HVAC component?\u003c\/h4\u003e\u003cp\u003eA qualified HVAC technician should install and test the flame sensor. Disconnect power first, follow lockout procedures, and confirm safe operation after replacement.\u003c\/p\u003e\n\n\u003ch3\u003eSafety and Installation Notes\u003c\/h3\u003e\n\u003cp\u003eDisconnect power before service. HVAC electrical and combustion-related components should be installed and tested by a qualified technician. After installation, confirm wiring, mounting, airflow or fluid routing as applicable, and normal system operation.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":53097265103215,"sku":"18G89","price":18.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/18g89-3.jpg?v=1781001948","url":"https:\/\/superarbor.io\/products\/lennox-18g89-flame-sensor","provider":"Super Arbor","version":"1.0","type":"link"}