{"product_id":"oem-lennox-r01851a010-switch-limit-99m78","title":"OEM Lennox R01851A010 Switch-Limit — 99M78","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 99M78\u003c\/strong\u003e (OEM part R01851A010) is an authentic Lennox limit switch that serves as a critical safety component, sensing heat exchanger temperatures and cutting power to the burners if dangerously high levels are reached. Signs of a failing limit switch include a furnace that short-cycles, a blower fan that runs continuously, or a system that produces no heat at all. This genuine OEM Lennox part is engineered for exact compatibility and long-lasting performance in your Lennox heating system.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081055519091,"sku":"LNX-99M78","price":19.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-r01851a010-switch-limit-99m78","provider":"National HVAC Parts","version":"1.0","type":"link"}