You should check. 1 Verify that the compressor's external unit's capacitor is in good condition to measure its capacitance with a tester that has this type of measurement, it will have to give you the same or similar value as that written on the same capacitor. 2 evaporator sensors if they are in good condition measuring their resistance in ohm at room temperature of 25 g. 3 Check the refrigerant pressure in the compressor in cold mode at the lowest possible temp if it is well coolant and see if the compressor does not overheat during this work period. 4 verify that the outdoor unit the forcer or fan is functioning properly and with good suction speed. 5 Verify that the indoor unit fan works well. 6 Check that the inner connections such as coils and filters are clean as well as coils of the clean outdoor unit. greetings I hope I can help you those are the causes that can make the compressor work towards you.