What is a common symptom of a refrigerant leak affecting equipment operation?

• A. Reduced cooling efficiency, compressor cycling irregularities, and alarms
• B. Increased cooling efficiency
• C. No change in operation
• D. Noise only

Answer: (A)

When a refrigerant leak occurs, the system loses its charge, so there’s less refrigerant available to absorb heat in the evaporator. That directly lowers cooling efficiency because the evaporator can’t remove as much heat from the space. The reduced charge also shifts operating pressures, which can cause the compressor to cycle irregularly—short cycling or longer run times as the controls try to meet the cooling demand. Abnormal pressures and this unusual behavior typically trigger alarms or fault codes on the control system. So, a leaking refrigerant manifests as diminished cooling performance, unpredictable compressor cycling, and system alarms.