Which of the following is NOT a symptom of a hermetic system that is low on refrigerant?

A flooded evaporator is not a symptom of a hermetic system that is low on refrigerant because this condition indicates that there is an excess of refrigerant in the evaporator coil. In a properly functioning system, adequate refrigerant allows the evaporator coil to absorb heat efficiently.

When a hermetic system is low on refrigerant, it typically leads to insufficient cooling, which can cause high head pressure as the compressor works harder. Frost may form on the evaporator coils due to the drop in pressure and temperature, causing moisture to freeze. Increased compressor cycling happens as the system struggles to maintain the desired temperature, turning on and off more frequently. In contrast, a flooded evaporator suggests that the system is potentially overcharged or facing another issue where refrigerant is not circulating or vaporizing properly.