Gree GMV-224WM/B-X Owner's Manual page 52

D.C. Inverter Multi-variable Modular
B If heating mode is selected, relevant display is as below:
—— Debugging code
progress
Code
db
db
db
16_Heating
debugging
db
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 standby condition and displays as below:
—— Debugging code
progress
Code
17_Debugging 01-
finished 04
Step 19: after debugging is finished, some functions can be set up according to project's actual
needs. For specific details, please refer to System Functions Setup. If no special requirements, skip
this step.
Step 20: deliver the product to user and inform user about usage precautions.
Progress code
LED1 LED2
Display Display
code
status status
Light 16 Light
Light 16 Light
Light 16 Light
Light 16 Light
Light 16 Light
Progress code
LED1 LED2
Display Display
code
status status
Light OF Light
Status code
LED3
Display
Code
status
Debugging is enabled in heating mode
AE Light (debugging mode, auto-selected by
system).
Error Error occurs during debugging in heating
Light
code mode.
Error of other modules occurs during
J0 Light
debugging in heating mode.
Outdoor pipeline and valves are not
U9 Light
normal.
System detects error in indoor pipeline.
XXXX is the project no. of the faulted IDU.
XXXX/ 3s later, error code U8 is displayed. For
Light
U8 example, IDU no. 100 has U8 error, then
LED3 displays like this: 01 (2s later) 00 (2s
later) U8, and repeat again.
Status code
LED3
Display
Code
status
Debugging is finished. System is on standby
OF Light condition. LED1 displays module address.
LED2 and LED3 display "OF".
49
Meaning
Meaning