Symptom
Possible Cause
Solution
The compressor
discharge
temperature is
too high.
The refrigerant loop or
component is blocked.
Clean up foreign matter in
the refrigerant loop.
Air enters the refrigerant
loop.
Exhaust air and repair the
pipeline.
Heat dissipation is poor
because the condenser is
dirty or blocked.
Clean the condenser fins.
The exhaust fan is faulty.
Check whether the exhaust
fan works properly.
The refrigerant is insufficient. Charge more refrigerant.
The compressor
discharge
pressure is too
low.
The refrigerant is insufficient. Charge more refrigerant.
Refrigerant leaks.
Check the pipeline for
leakage.
The exhaust fan drive fails to
be controlled.
Replace the fan drive.
The compressor
suction pressure
is too low or
liquid returns.
The refrigerant is insufficient. Charge more refrigerant.
The indoor temperature is set
too low.
Modify the temperature
setting.
The air filter is dirty or
blocked.
Replace the air filter.
The external residual
pressure is too high, and
airflow decreases.
Check whether the air
channels are blocked.
The condensing pressure is
too low.
Check the condenser.
The compressor
generates a
loud noise.
Liquid is returning to the
compressor.
Check whether the oil
temperature and discharge
temperature are within
normal ranges.
Refrigerant oil is insufficient.
Add refrigerant oil.
The sheet metal fasteners for
securing the compressor
during transportation are not
removed.
Remove the sheet metal
fasteners.
The fan fails to
start.
The switch of the fan is
turned off.
Check the switch of the fan.
The fan is damaged.
Replace the fan.
FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
8 System Maintenance
Issue 02 (2021-04-15)
Copyright © Huawei Technologies Co., Ltd.
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