Hello, I added r134a to my system today but I think it is still low. When the compressor turns on, my gauge shows the system go down to about 25psi and the Low pressure switch engages and shuts the compressor off. The pressure goes back up and the compressor goes back on and so on. About every 5-10 seconds. Should I keep adding freon until the compressor stays consistently on? I read another blog stating it is normal for the compressor to go on every 5-10 seconds but to me, the guage and low pressue switch are telling me it is low. Thanks for the advice!!!