Excess of water flow

Excess of refrigerant

Shortage of water flow

Shortage of refrigerant

All grille temperatures

Liquid line temperature

Inlet and outlet temperature of chillier

Temperatures in chilled water system

Poor cooling

Excess cooling

Compressor over loading

Compressor trips by HP cut out

Poor condensation

Damaged oil separator

Excess oil in crankcase

Defective oil heater/circuit

Avoid oil foaming

Prevent liquid entry to compressor

Increase current of the compressor motor

To lower the suction pressure close to 0.5 kg/cm²