Look for physical indicators such as a bulged top

If the fan does not restart after the cycle terminates

allowing for precise calibration across various evaporator setups

the 016514F is the official superseding part number

To maintain system integrity

Heatcraft Refrigeration 7075819 Defrost Terminal 318820-201 Look for physical indicators suchThe Heatcraft Refrigeration 7075819 Defrost Terminal is a critical 3 wire defrost and fan control switch designed for commercial evaporator coils. Engineered for precise thermal management, this Klixon type termination switch initiates fan delay and terminates the defrost cycle based on coil temperature to prevent steam from entering the refrigerated space. It features a specific 50? F open and 2? F close calibration, ensuring the evaporator fans only