What is an appropriate action when a refrigerant leak is suspected in a system?

When a refrigerant leak is suspected in a system, repairing the leak immediately is the appropriate action to take. This response is critical because refrigerants can be harmful to both the environment and human health. Leaks can lead to decreased system efficiency, increased energy consumption, and potential safety hazards.

Addressing the leak promptly helps to restore the system to optimal operation while minimizing risks associated with exposure to refrigerants. Immediate repair also prevents further loss of refrigerant, which can be costly and contribute to environmental damage.

The other options, such as ignoring the leak, trying to compensate for it by increasing refrigerant levels, or merely monitoring the system, do not effectively resolve the underlying problem and can lead to more severe consequences over time. Ignoring the leak could result in greater safety risks or environmental harm, while compensating for the leak does not solve the issue and can exacerbate operational inefficiencies. Monitoring the system without addressing the leak may delay necessary repairs and create further complications. Hence, immediate repair is the most responsible and effective course of action when a refrigerant leak is suspected.