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7.2 Fault Symptom: Non Air
Conditioning Issues
The following fault symptoms are not caused by the air
conditioning:
7.2.1 Fault symptom: System cannot run
The air conditioner does not start immediately after
pressing the switch button on the controller. If the
operating indicator lights up, the system is working
normally. To prevent overloading of the compressor
motor, restart the air conditioner 12 minutes after the
switch button is pressed to prevent it from shutting down
immediately after it turns on. The same start-up delay
occurs after the mode selector is pressed.
7.2.2 Fault symptom: Fan speed is not
consistent with the setting
Even if the fan speed regulation button is pressed, the
fan speed does not change. During heating, when the
indoor temperature reaches the set temperature, the
outdoor unit will shut down, and the indoor unit switches
to the quiet fan speed mode. This is to prevent cold air
from blowing directly at the room user. The fan speed
will not change even when another indoor unit is
heating, if the button is pressed.
7.2.3 Fault symptom: Fan direction is not
consistent with the settings
The air direction is not consistent with the user interface
display. The air direction does not swing. This is
because the unit is controlled by the centralized
controller.
7.2.4 Fault symptom: A unit is emitting
white smoke (indoor unit)
When cooling during high humidity, if the interior
pollution of the indoor unit is severe, the indoor
temperature distribution will be uneven. The interior of
the indoor unit should be cleaned. Ask the agent for
detailed information on how to clean the unit. This
operation must be carried out by qualified maintenance
personnel.
Surface immediately after cooling has stopped and
when the indoor humidity is relatively low. This is due to
the steam produced by the warm refrigerant gas on its
return path to the indoor unit.
7.2.5 Fault symptom: A unit is emitting
white smoke (indoor unit,
outdoor unit)
After defrosting, switch the system to the heating mode.
The moisture produced by the defrosting operation will
become steam which is discharged out of the system.
7.2.6 Fault symptom: The air conditioner
is producing noise (indoor unit)
A "zeen" sound is heard the moment the system is
powered on. This noise is produced by the electronic
expansion valves inside the indoor unit as they begin to
work. The sound volume will be reduced in about 1
minute.
A soft and continuous "shah" sound can be heard when
the system is in cooling mode or has stopped running.
This noise can be heard when the drainage pump is
running (optional accessory).
A loud creaking "pishi-pishi" sound can be heard once
the system stops after it has heated up the room. The
expansion and contraction of plastic parts caused by
temperature changes will also make this noise.
Once the indoor unit stops, a soft "sah" or "choro-choro"
sound can be heard. This noise can be heard when
another indoor unit is still running. A small amount of
refrigerant flow must be maintained to prevent oil and
refrigerant residues in the system.
7.2.7 Fault symptom: Noise from air
conditioner (indoor unit, outdoor
unit)
A soft, continuous hissing sound can be heard when the
system is in cooling or defrosting operation. This is the
sound of the refrigerant gas flowing in the indoor and
outdoor units.
A hissing sound is heard the moment the system starts
or stops operation or after the defrosting operation has
been completed. This is the noise produced when the
refrigerant flow is stopped or changed.
7.2.8 Fault symptom: Noise from air
conditioner (outdoor unit)
When the tone of the operating noise changes. This
noise is caused by frequency changes.
7.2.9 Fault symptom: Dust and dirt in the
unit
When using the unit for the first time, this is because
there is dust inside the unit.
7.2.10 Fault symptom: The unit is
emitting a strange odor
This unit will absorb the odors of rooms, furniture,
cigarettes and others, and then disperse the odors
again.
Sometimes small animals stray into the unit, which can
also cause odors.
7.2.11 Fault symptom: ODU fan does not
run
In the course of operation. Control the speed of the fan
motor to optimize the product operations.
7.2.12 Fault symptom: Hot air is felt when
the indoor unit stops
Different types of indoor units are operating in the same
system. When another unit is running, part of the
refrigerant will still flow through this unit.
8 CHANGING INSTALLATION SITE
Please contact the agent to dismantle and reinstall the
units. You need specialized skills and technology to
move the units.
9 DISPOSAL
The unit uses hydrogen fluorocarbons. Please contact
the agent when you want to dispose the unit. Based on
the requirements of the law, the collection, transportation
and disposal of refrigerants must be in accordance with
the regulations governing the collection and destruction
of hydrofluorocarbons.
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