{"product_id":"lennox-37911-thermal-fuse-hvac-replacement","title":"Lennox 37911 Thermal Fuse Hvac Replacement","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe LENNOX 37911 is a thermal fuse designed as a protective component in Lennox HVAC systems. A thermal fuse is a one-time-use safety device that interrupts the electrical circuit when a system reaches an unsafe temperature, preventing equipment damage or fire risk. Once the fuse opens, it must be replaced before the unit will operate again. Licensed HVAC technicians install this part during diagnostic service when the original thermal fuse has blown due to overtemperature conditions in the unit.\u003c\/p\u003e\n\u003cp\u003eThis thermal fuse is used in central air and heating equipment where overcurrent or overtemperature protection is required at the component level. It is typically found inline on a control circuit or motor winding circuit within a Lennox HVAC system. Technicians encountering a unit that will not start or that trips a diagnostic fault related to thermal protection should test the fuse for continuity before replacing it.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eOne-time thermal protection device that opens the circuit on overtemperature events\u003c\/li\u003e\n  \u003cli\u003eDirect OEM replacement for Lennox HVAC systems using part number 37911\u003c\/li\u003e\n  \u003cli\u003eDesigned to protect downstream components from heat-related damage\u003c\/li\u003e\n  \u003cli\u003eNon-resettable design ensures the fault condition is identified before the system is returned to service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement thermal fuse for Lennox HVAC central air and heating equipment. Verify the part number 37911 matches the label on the original fuse before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician. Disconnect and lock out all power to the unit before accessing internal components. Before replacing the fuse, diagnose and correct the root cause of the thermal fault to prevent repeat failure. Confirm continuity of the new fuse with a multimeter before reassembling the unit and restoring power.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Type\u003c\/strong\u003e: Thermal Fuse\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: HVAC Central Air and Heating Systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: LENNOX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 37911\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LENNOX","offers":[{"title":"Default Title","offer_id":51204410409266,"sku":"37911","price":237.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307145816.jpg?v=1779709059","url":"https:\/\/voomisupply.com\/products\/lennox-37911-thermal-fuse-hvac-replacement","provider":"Voomi Supply","version":"1.0","type":"link"}