Troubleshooting

Does not cool

What works:

• Evaporator fan

What does not work:

• Condenser fan

• Compressor

Enclosure temperature lower than that set in the control thermostat

It is not an anomaly of the cooling unit.

• Set the thermostat to a lower value until the compressor and the condenser fan start up

• Reset to the original value

Inoperable electronic thermostat

Replace the regulation thermostat

What does not work:

• All the components

No voltage to the cooling unit

It is not an anomaly of the cooling unit:

• Check that the power cable is securely connected to the terminals

• Check that the enclosure doors and switches are closed

What works:

• Evaporator fan

• Condenser fan

• Compressor

Cooling unit without refrigerant

Call a specialized technician or Schneider Electric Technical Support

Inoperable compressor

What works:

• Compressor

• Condenser fan

What does not work:

• Evaporator fan

Inoperable evaporator fan electric capacitor

Replace the evaporator fan electric capacitor

Inoperable evaporator fan

Replace the evaporator fan

What works:

• Evaporator fan

• Condenser fan

What does not work:

• Compressor

Inoperable compressor

Call a specialized technician or Schneider Electric Technical Support

Does not sufficiently cool

What works continuously:

• Evaporator fan

• Condenser fan

Cooling unit undersized relative to the heat dissipated in the enclosure

Replace the cooling unit with a more powerful one

Air intakes and outlets clogged or blocked

Check that the air intakes and outlets are not clogged or blocked

What works continuously:

• Evaporator fan

What works intermittently:

• Condenser fan

• Compressor

Insufficient refrigerant in the cooling unit

Call a specialized technician or Schneider Electric Technical Support

What works continuously:

• Evaporator fan

• Condenser fan

What works intermittently:

• Compressor

Internal thermal protection compressor activated:

• Ambient temperature higher than the maximum operating limit

• Condenser dirty or obstructed

• Lower the temperature of the environment by ventilating the area of the enclosure

• Clean the condenser with compressed air

Excessive formation of water condensation

Enclosure door open

Too much ambient air in the enclosure

It is not an anomaly of the cooling unit. Close the door of the enclosure or deactivate the cooling unit.

Enclosure door closed

Enclosure with protection level lower than IP54

It is not an anomaly of the cooling unit. Seal the openings of the enclosure for example, the cable access openings

Enclosure and cooling unit coupling poorly sealed

Check the seals and repair if necessary

Setpoint temperature on the thermostat is very low

Raise the setpoint temperature on the thermostat

The condenser is not working or is stuck

Drain condenser and check that the tubing is not blocked