![Refrigerant Leakage Detect Refrigerant Leakage Detect](/sites/default/files/styles/technology_full/public/images/technology/en/refrigerant-leakage-detect.jpg?itok=or9oLzgh)
Its a electronical function of Main PCB and self-diagnostic system into AC.
When pipe-temperature sensor at inlet line of evaporator will indicate highest temperature, system will indicate "EC" code in a display of indoor units, its mean "ask for service centre for visit maintance team with leakage detectors and tools"