{"product_id":"oem-lennox-78h7401-limit-control-78h74","title":"OEM Lennox 78H7401 Limit Control — 78H74","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 78H74\u003c\/strong\u003e (OEM part number 78H7401) is an authentic Lennox limit control switch that monitors heat exchanger temperature and cuts power to the burner when a threshold is exceeded, protecting your system from overheating and potential heat exchanger damage. If your Lennox furnace is short-cycling, blowing cold air, or failing to maintain consistent operation, a worn or defective limit control is a common culprit. This genuine OEM part is manufactured to Lennox standards, ensuring a precise fit and dependable long-term performance in compatible Lennox furnace models.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081057812851,"sku":"LNX-78H74","price":19.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-78h7401-limit-control-78h74","provider":"National HVAC Parts","version":"1.0","type":"link"}