An excessive charge of refrigerant in a thermostatically controlled, air-cooled, refrigeration system using a TXV as an expansion device can cause which of the following?

Correct Answer: Option B — higher than normal discharge pressure

An overcharge floods the condenser internal volume with liquid refrigerant, effectively reducing the active heat transfer surface area. This restricted condensing area spikes the operational head pressure, causing abnormally high compressor discharge readings.