Gree GMV-224WM/G-X Owner's Manual page 68

GMV DC Inverter VRF
● Following circumstances are not malfunctions.
Unit doesn't run
Mist comes from the unit
Noise is emitted
Noise is emitted
There is dust blowing out
from the unit
The unit emits odor
The indoor unit is still
running after shutting
down
Mode conflict
Phenomenon
When unit is started immediately after it
is just turned off
When power is turned on
Under cooling
When the power supply is connected,
there is small "dada" sound.
When the system is conducting cooling ,
defrosting or oil return, there is
continuous "sa——" sound.
When the system is switching cooling
and heating modes; during heating
operation, the unit enters or quits
defrosting operation or oil return
operation, there is "chi——" sound.
When the system is started or stopped
for a short time, you can hear the sound
of "sa——"; you can also hear this sound
for a short time after the start or stop of
the defrosting operation.
When the system is in cooling operation
or after it stops running, a continuous
"sa——" sound can be heard
When the system is running or after it
stops running, a "creaking" sound can
be heard.
When the system is in heating operation,
after the indoor unit stops running, the
sound like running water can be heard.
When the indoor unit stops running, a
faint "sa——" sound or "gurgling" sound
can be heard.
When the unit is running, the operating
sound of the compressor changes.
During the operation of the unit or after
the operation is started or stopped, a
continuous "sa——" sound can be
heard.
When the operating mode of the unit
changes, the indoor unit and outdoor
unit will produce "sa——" and "gurgling"
sounds.
The sound from the outdoor unit can be
heard indoors
Start operation after it is not used for a
long time
Operating
The indoor unit is still running after
shutting down
Cooling or heating mode cannot start up
Overload protection switch makes it run after 3 minutes
delay
Standby operating for about 1 minute
Indoor high humidity air is cooled rapidly
It is the sound of startup action of electronic expansion
valve.
This is the sound of refrigerant flowing inside the unit.
This is the sound for direction reversal of 4-way valve.
This is the sound produced when the refrigerant stops or
changes the flow.
This is the operation sound of drain system.
This is the sound produced when plastic parts such as
panel expansion and contraction due to temperature
changes.
The unit is melting the frost on the outdoor unit, please
wait about 10 minutes (due to different unit models, the
waiting time will vary).
This sound can be heard when other indoor units are
running. This is to prevent oil and refrigerant from staying
in the indoor unit, and to keep a small amount of
refrigerant flowing.
This is caused by changes in compressor operating
frequency.
This is the sound produced when the refrigerant bypass
valve operates.
This is the sound produced when the refrigerant stops or
changes flow.
This is because the outdoor unit is installed close to the
window or wall, and the sound insulation is poor, and the
external noise is transmitted in.
Dust in indoor unit is blew out
The odor of the air conditioner is sucked into the room
and then blown out
The fan of indoor unit will continue to work for 20 to 70
seconds to fully use the residual cooling or heat of the
heat exchanger, and to prepare for the next use.
When the selected operation mode of the indoor unit
conflicts with the operation mode of the outdoor unit,
after five seconds, the indoor unit error indicator flashes
or the remote controller displays the operation conflict,
and the indoor unit shuts down. At this time, the indoor
unit can be converted to run with the outdoor unit. The
mode can be restored to normal without conflict. The
cooling mode and dry mode do not conflict, and the air
supply does not conflict with any mode.
64
Causes