GREE ELECTRIC DC Inverter U-match Series, Руководство пользователя

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DC Inverter U-match Series Duct Type Unit
54
(2) The following situations are not operation failures.
Problem Time of occurrence Cause
Mist comes
from the air
conditioner.
During operation.
If the unit is running under
high humidity, the wet air in
the room will be quickly
cooled down.
The air
conditioner
generates
some noise.
System switches to heating
mode after defrosting.
Defrosting process will
generate some water, which
will turn to water vapor.
The air conditioner is buzzing at
the beginning of operation.
Temperature control will be
buzzing when it starts
working. The noise will
become weak 1min later.
Dust comes
from the air
conditioner.
When the unit is turned on, it
purrs.
When the system is just
started, the refrigerant is not
stable. About 30s later, the
purr of the unit becomes low.
About 20s after the unit first
enables the heating mode or
there is refrigerant brushing
sound when defrosting under
heating.
It’s the sound of 4-way valve
switching direction. The sound
will disappear after the valve
changes its direction.
There is hissing sound when the
unit is started or stopped and a
slight hissing sound during and
after operation. It’s the sound of gaseous
refrigerant that stops flowing
and the sound of drainage
system.
There is a sound of crunching
during and after operation.
Because of temperature
change, front panel and other
components may be swelled
up and cause abrasion sound.
There is a hissing sound when
the unit is turned on or suddenly
stopped during operation or after
defrosting.
Because refrigerant suddenly
stops flowing or changes the
flow direction.
The unit starts operation after
being unused for a long time.
Dust inside the indoor unit
comes out together with the
air.
The air
conditioner
generates
some smell.
During operation.
The room smell or the smell of
cigarette comes out through
the indoor unit.