If there is insufficient refrigerant in a system, what is the most likely outcome regarding system performance?

When there is insufficient refrigerant in a system, the evaporator plays a crucial role in heat absorption. Refrigerant is responsible for absorbing heat from the environment in the evaporator coil; if the quantity of refrigerant is low, the evaporator cannot extract enough heat. This lack of adequate heat absorption results in a failure to provide the necessary cooling effect for the system.

Insufficient refrigerant leads to lower pressures and temperatures in the evaporator, causing it to become less effective in performing its cooling function. Consequently, the overall system performance deteriorates, leading to inadequate cooling and potential operational issues such as icing on the evaporator coil. This situation directly impacts the ability of the system to maintain desired temperatures, thus confirming that this answer accurately reflects the outcome of low refrigerant levels.