Troubleshooting

Anomaly	Conditions	Causes	Solution
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.
	What works: Evaporator fan Condenser fan Compressor	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.
	What works continuously: Evaporator fan Condenser fan	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.
Controller display does not work	Unit powered on	Current overload	Replace controller Check that a circuit breaker is installed specifically for the cooling unit, as indicated on the Instruction Sheet (GEX8258601)