What would cause an air conditioner to have low suction and high discharge?

Low suction and high discharge in an air conditioner can be caused by several factors, including low refrigerant levels due to leaks, a clogged air filter restricting airflow, or an issue with the compressor itself. Additionally, a malfunctioning expansion valve can lead to improper refrigerant flow, exacerbating the problem. These conditions can hinder the system's ability to cool effectively and may require professional diagnosis and repair.