Gree GMV-Y72WM/C-F Owner's Manual page 67

Photovoltaic Direct-driven Inverter VRF
according to ambient temperature.
A If cooling mode is selected, relevant display is as below:
——
Debugging code Progress code
LED1
progress
Code
db
db
db
15_Cooling
db
debugging
db
B If heating mode is selected, relevant display is as below:
——
Debugging code Progress code
LED1
progress
Code
db
db
db
16_Heating
db
debugging
db
Step 18: if there's no error during operation for about 40min, system will automatically
confirm that debugging is finished and then stop. System resumes stan dby condition and
displays as below:
LED2
Display Display
code
status status
Light 15 Light
Light 15 Light
Light 15 Light
Light 15 Light
Light 15 Light
LED2
Display Display
code
status status
Light 16 Light
Light 16 Light
Light 16 Light
Light 16 Light
Light 16 Light
Status code
LED3
Display
Code
status
Debugging is enabled in cooling mode
AC Light (debugging mode, auto-selected by
Error Error occurs during debugging in
Light
code
Error of other modules occurs during
J0 Light
debugging in cooling mode.
Outdoor pipeline and valves are not
U9 Light
System detects error in indoor
pipeline. XXXX is the project no. of
the faulted IDU. 3s later, error code
XXXX
Light U8 is displayed. For e xample, IDU no .
/U8
100 has U8 error, then LED3 displays
like this: 01 (2s later) 00 (2s later) U8,
Status code
LED3
Display
Code
status
Debugging is enabled in heating
AE Light
Error Error occurs during debugging in
Light
code
Error of other modules occurs during
J0 Light
debugging in heating mode.
Outdoor pipeline and valves are not
U9 Light
System detects error in indoor
pipeline. XXXX is the project no. of
the faulted IDU. 3s later, error code
XXXX
Light U8 is displayed. For e xample, IDU no .
/U8
100 has U8 error, then LED3 displays
like this: 01 (2s later) 00 (2s later) U8,
63
Meaning
system).
cooling mode.
normal.
and repeat again.
Meaning
mode (debugging mode,
auto-selected by system).
heating mode.
normal.
and repeat again.