The Beverage Air 502-069A Refrigerator Defrost Thermostat is a critical thermal regulation component designed to prevent frost accumulation and maintain consistent cooling performance in commercial refrigeration units. Mounted near the evaporator coil, this bimetallic safety switch works by sensing temperature changes, automatically closing to initiate the defrost cycle when frost bui... https://partsfe.ca/defrost-thermostat-for-beverage-air-part-502-069a