Overloaded refrigerant unit.
Discharge the refrigerant at maximum speed, there is only gas in one place of the unit. In the case of an airtight system without registers, use a perforation register applied to the compressor service tube. Measure the loads using the liquid drawer indications. If this is not installed, the same type of lifting can be done using an ultrasound liquid flow indicator, temporarily applied at the beginning of the liquid line.
