Upon arrival found system cooling. Client mentionted that system has been going off intermittently during very hot days. Checked indoor unit delta T receiving very high temperature split, 36 Degrees from Supply Ductwork. Checked condenser pressures noticed saturation temperature below freezing. Noticed Suction Line beginning to freeze. Checked pressures 99PSI Low - 29Saturation with 20 Degrees Subcooling. System appeared to be overcharged or liquid line restriction but after checking coils noticed condenser coils heavily restricted 100 percent % had to remove all covers & fan to remove dirt and debris build up on coils. After cleaning condenser checked pressures ok noticed Subcooling very high at 30 - Must return to remove pressure from system and recharge before condemning TXV, Also noticed that the motor on system is rated for 7.5 MFD Cap & System is operating with 45/3 Capacitor? Also reccomended replacing Capacitor - Left system operational and cooling must return for repair work.