{"product_id":"erp-replacement-flame-sensor-fls401","title":"Carrier Furnace Flame Sensor FLS401 LH33CM018","description":"\u003ch2\u003eCarrier Furnace Flame Sensor — FLS401\u003c\/h2\u003e\u003cp\u003eThe ERP FLS401 is an aftermarket flame sensor for selected Carrier furnaces with hot-surface ignition systems. It helps the furnace control verify flame during burner operation. A failed, contaminated, or damaged sensor can contribute to ignition lockout, no-heat symptoms, or repeated start attempts. Match the original sensor, length, lead, terminal, ignition system, and complete furnace model before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eERP aftermarket replacement:\u003c\/strong\u003e This part is not a genuine Carrier part and is not affiliated with Carrier.\u003c\/p\u003e\u003ch3\u003eCompatible Part Numbers\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFLS401\u003c\/li\u003e\n\u003cli\u003eLH33CM018\u003c\/li\u003e\n\u003cli\u003e67970\u003c\/li\u003e\n\u003cli\u003e760-401\u003c\/li\u003e\n\u003cli\u003ePFS401\u003c\/li\u003e\n\u003cli\u003e10-760\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect replacement:\u003c\/strong\u003e Replaces a compatible HSI furnace flame sensor when specifications and fit match.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary function:\u003c\/strong\u003e Helps the furnace control verify burner flame.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey benefit:\u003c\/strong\u003e Helps restore reliable flame proving and heating operation when the original sensor fails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction and fit:\u003c\/strong\u003e Alumina ceramic insulator, Kanthal flame rod material, 4-inch flange-to-tip length, 30-inch lead, and 0.25-inch quick-disconnect termination.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFixes These Symptoms\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFurnace ignites but shuts down shortly afterward\u003c\/li\u003e\n\u003cli\u003eFurnace enters ignition lockout or produces no heat\u003c\/li\u003e\n\u003cli\u003eRepeated ignition attempts or short cycling\u003c\/li\u003e\n\u003cli\u003eFlame sensor is damaged, contaminated, or corroded\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Brands\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eCarrier\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eCompatible Models\u003c\/h3\u003e\u003cp\u003eFits various models. Please verify compatibility with us before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAlways verify your model number before ordering.\u003c\/strong\u003e Match the complete furnace model, original part number, ignition system, sensor length, lead, and terminal. Gas and combustion service must be performed by a qualified HVAC technician.\u003c\/p\u003e","brand":"ERP","offers":[{"title":"Default Title","offer_id":50280951513331,"sku":"ERFLS401","price":6.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/7859\/2755\/files\/FLS401.jpg?v=1788433116","url":"https:\/\/authenticapplianceparts.com\/products\/erp-replacement-flame-sensor-fls401","provider":"Authentic Appliance Parts","version":"1.0","type":"link"}