{"product_id":"oem-lennox-switch-limit-fixed-175-42j04","title":"OEM Lennox Switch Limit Fixed 175 — 42J04","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 42J04 (42J0401)\u003c\/strong\u003e is a genuine OEM fixed limit switch set at 175°F, engineered to interrupt burner operation when the heat exchanger exceeds safe temperature thresholds in your Lennox furnace. Common signs of a failing limit switch include short cycling, the furnace blowing cold air, or continuous blower operation without heating. This direct replacement part is built to Lennox OEM specifications for a precise fit and dependable long-term operation.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081054568819,"sku":"LNX-42J04","price":19.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-switch-limit-fixed-175-42j04","provider":"National HVAC Parts","version":"1.0","type":"link"}