Good morning, today I decided to start repairing refrigerators and I have this model. Start the user tells me that the refrigerator does not work and that the previous technician said that I charge gas and now it does not work due to the low voltage that if it has it (170v), the engine and the pipes are intact at the factory x what I see that Coolant was not charged either. I take pressure and it is empty and a consumption of 1 ampe.change the filter, I empty, refrigerant charge without balance (it broke) I take it to about 5lb with the return to frozen frozen equipment consumes 1.3a and begins to cool until it makes ice but the refrigerator does not stop and after this the return begins to block even with a negative pressure. All help is received!