Line voltage below the tolerance limits.
Check the voltage of each of the three phases on the meter, if it is below the tolerance limits and if there is an imbalance between the three phases, it requires the intervention of the electricity supply company. If, on the contrary, the voltage between the phases is at the limits, check that there is no voltage drop at the compressor input while the compressor rotates. If there is a voltage drop, there is a demonstration that the line between the meter and the compressor is of insufficient section. Replace the line with another of a suitable section.
