Springtime Air Conditioning Repair for a commercial client near Wooded Creek. Upon arrival customer States that only the lobby unit wasn’t cooling. Checked outdoor unit and found the system low on charge and condenser coil completely clogged. Checked indoor units evaporator coil and found oil on suction line. Traced it back to the pressure port for the txv. Was able to tighten port half a turn. Checked coil with leak detector and picked up nothing. With approval washed coil and added 7lbs of 410-A to set charge. System is now cooling properly at this time.