1638 A/C 2-1 found coolant fault during ~~~~~ #1638-A/C 2-1 Found freon low.Before LP=10 & HP=50psi. Recharge freon ok and LP=40 & HP=110psi.Checked condenser side no leakage-ok.Monitor LP/HP pressure ok,A/C able to cut in/out. Done by Saini/Haikel. 08/06/21