GMV DC Inverter VRF
67
Phenomenon
Reason
Measure
Abnormal cooling or
heating
Door or windows are opened
Close the door or windows
Direct sunshine
Draw curtain or louver
Too many people in the room
——
Too many heat resources in the room
Reduce heat resources
Filter is blocked for dirt
Clean the filter
NOTE!
If problem cannot be solved after checking the above items, please contact Gree service center
and show phenomena and models.
Following circumstances are not malfunction.
“Malfunction”
Reason
Unit doesn't run
When unit is started immediately after it is just
turned off
Overload protection switch makes it run after
3 minutes delay
When power is turned on
Standby operating for about 1 minute
Mist comes from
the unit
Under cooling
Indoor high humidity air is cooled rapidly
Noise is emitted
Slight cracking sound is heard when just turned
on
It is noise when electronic expansion valve
initialization
There is consecutive sound when cooling
That's sound for gas refrigerant flowing in unit
There is sound when unit starts or stops
That's sound for gas refrigerant stops to flow
There is slight and consecutive sound when unit
is running or after running
That's sound for operation of drainage system
Cracking sound is heard when unit is operating
and after operating
That's sound caused by expansion of panel
and other parts due to temperature change
The unit blows out
duct
When unit runs after no operation for a long
period
Dust in indoor unit is blew out
The unit emits odor Operating
The room odor absorbed by the unit is blew
out again
Indoor unit still runs
after switch off
After every indoor unit receive "stop" signal, fan
will keep running
Indoor fan motor will keep running 20-70s so
as to take good use of excess cooling and
heating and prepare for next operation
Mode conflict
COOL or HEAT mode can't be operated
When the indoor operating mode conflicts
with that of outdoor unit, indoor fault indicator
will flash and conflict will be shown on the
wired controller after 5 minutes. Indoor unit
stops to run and meanwhile change outdoor
operating mode as the same as that of indoor
unit, then the unit will go back to normal.
COOL mode doesn't conflict with DRY mode.
FAN mode doesn't conflict with any mode.