Your system is running, but you don’t know if it’s running correctly
You’ve had more service calls than you should
Temps “mostly hold” but you’re seeing swings, ice, long runtimes, or slow recovery
Energy use feels high and you suspect the system is working harder than it should
You need to reduce risk for mission-critical product (medical, lab, industrial, etc.)
Temperature stability & recovery behavior
Run patterns that suggest strain or inefficiency
Defrost behavior symptoms
Airflow / coil condition indicators (based on symptoms you report)
Control and protection gaps (where systems get damaged quietly)
Reliability risk based on age, history, and operating conditions