: | good afternoon, I check a 9000 BTU 220v Frigidaire minisplit, plate amperage is 3.5 amp and 5.5 amp maximum, which turns on normally, lowers its static pressure from 120 psi to 20 psi, freezes high line and subsequently defrosts and increases its pressure, until here everything normal. Subsequently, it continues to increase the amperage of the compressor and up to 7.9 amp and protects the working pressure up to 95 psi at the same time that the amperage is also increasing, which is what it reached before the compressor was protected ... he commented that approximately 2.5 months ago I had done maintenance on the equipment and gradually stopped cooling well, the client told me ... I don't know that the repression may be causing since the lines are fine. regards