Gree GMV-60WL/C-T Owner's Manual page 26

DC Inverter Multi VRF System
—
Progress
06/error code
06_ Detect outdoor
components
06/oC
07/XX/error
code
07_ Detect indoor
components
07/XXXX/error
code
07/oC
08/U0
08_ Confirm
preheated
compressor
08/oC
09/U4
09_ Refrigerant
judgments before
startup
09/oC
10/on
10_Status
judgments of
10/U6
outdoor valves
before startup
10/oC
Description of each stage of debugging progress
Debugging code
LED
Code Display status
Display
circularly
Display
circularly
Display
circularly
Display
circularly
Display
circularly
Display
circularly
Display
circularly
Display
circularly
Display
circularly
Display
circularly
Display
circularly
Display
circularly
Code meaning and operation method
Outdoor component's error. Besides "06", the other
blinking will display the related error code. After errors
are eliminated, system will start next step automatically. If
power is off during troubleshooting, then restart
debugging from progress 01 after power is on.
System detects no error on outdoor component. 10s
later, next step starts.
System detects error on indoor components. XX means
the project code of IDU with error, e.g. no.1 IDU has d5
and d6 errors, meanwhile no.3 IDU displays error d6 and
d7, then the nixie tube will display "07", "01", "d5",
"d6"and "03" circularly. After errors are eliminated,
system will start next step automatically. If power is off
during troubleshooting, then restart debugging from
progress 01 after power is on.
If errors occur in IDU which the project code is ≥ 3-digit
number, then it will display the 2 big digits of project code
first, then the 2 small digits, finally the error code, e.g: L1
error occurs in no.101 IDU, then the nixie tube will
display "01","01" and "L1" circularly. Display method is
the same for several IDUs with multiple errors.
No error on components of IDU. 5s later, next step starts.
Preheat time for compressor is less than 8 hours. Display
will be as in the left until the preheat time reaches 8
hours. Press main board's SW3 button to confirm
manually that the preheat time has reached 8 hours.
Then start next step. (NOTE: Compressor may get
damaged if it is started without 8 hours of preheat time)
Compressor has been preheated for 8 hours. 2s later,
next step starts.
System is lack of refrigerant and display will be as in the
left. Please cut off power of IDU and ODU and check if
there is leakage on pipeline. Solve the leakage problem
and complement refrigerant into the unit. Then connect
power and restart debugging from progress 01. (Note:
Before re-charging refrigerant, unit must be power off in
case system starts progress 10 automatically) .
Refrigerant is normal and unit will display as in the left for
2s.Then next step starts.
Valves of ODU are being inspected. Compressor will
start operation for 2min or so and then stop. The opening
and closing status of outdoor valves are as below.
Outdoor valves are not fully turned on. Press main
board's SW4 button and display shows "09/OC". Then
check if the gas and liquid valves of ODU are completely
open. After confirmation, press the SW4 button again.
Then compressor will start running for about 2min to
inspect the status of valves.
Valves status is normal. Unit will display as in the left for
2s and then start next step.
23