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Operating with a 24V coil
securing reliable operation in gas-fired heating environments
ensuring a fast and secure interface for technicians during field replacements
and TP973 models
Lennox 18J28 Limit Switch Operating with a 24V coilWhen you're troubleshooting a furnace that's short cycling or a blower motor that won't quit, the Lennox 18J28 Limit Switch is a primary diagnostic point. This genuine OEM furnace high limit switch is a critical safety component designed to monitor heat exchanger temperatures and prevent hazardous overheating. Featuring a 165F CO (Cut Out) and 135F CI (Cut In) thermal profile, this auto reset limit switch ensures the burner circuit opens if internal
