True or False: On a walk-in cooler, the evaporator fan will cycle on with the compressor after a defrost cycle.

The statement that the evaporator fan will cycle on with the compressor after a defrost cycle is false. In a typical walk-in cooler system, the control strategy involves a sequence where the evaporator fan is not immediately activated after a defrost cycle. This is designed to allow any residual heat or moisture from the defrost process to dissipate.

After the defrost cycle, the compressor starts to cool down the evaporator coil and re-establish the necessary temperature differential. The fan will usually remain off for a short period to prevent blowing warmer air into the cooler. Once the evaporator coil reaches a certain temperature threshold that indicates it’s cold enough to effectively circulate air, then the evaporator fan will turn on.

This ensures that the cooler's temperature drops efficiently without introducing warmer air that could affect product quality. Thus, the statement is indeed false.