{"product_id":"oem-lennox-limit-switch-20w37","title":"OEM Lennox Limit Switch — 20W37","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 20W37\u003c\/strong\u003e is a genuine OEM limit switch engineered to safeguard your Lennox furnace by monitoring internal temperatures and interrupting burner operation if overheating is detected. A defective limit switch can cause symptoms such as the furnace blowing cold air, frequent cycling on and off, or the system failing to produce heat altogether. This direct OEM replacement restores proper safety control function and is designed for seamless compatibility with applicable Lennox furnace models.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081052275059,"sku":"LNX-20W37","price":19.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-limit-switch-20w37","provider":"National HVAC Parts","version":"1.0","type":"link"}