{"product_id":"oem-lennox-s10-limit-control-78l68","title":"OEM Lennox S10 Limit Control — 78L68","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 78L68\u003c\/strong\u003e (OEM part number 78L6801) is a genuine Lennox S10 series limit control that continuously monitors furnace operating temperatures and opens the circuit to shut down the burner whenever unsafe heat levels are detected, protecting the heat exchanger and internal components from damage. Failure symptoms include the furnace short-cycling, blowing only cold air, or displaying a high-limit fault code on the control board. This OEM-certified replacement is built to exact Lennox factory standards, delivering a precise fit and restoring safe, efficient furnace operation.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081053061491,"sku":"LNX-78L68","price":19.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-s10-limit-control-78l68","provider":"National HVAC Parts","version":"1.0","type":"link"}