Gree GMV-120WM/B-F

GMV DC Inverter VRF
55
——
Debugging code
Progress code
Status code
Meaning
progress
LED1
LED2
LED3
Code
Display status
code
Display status
Code
Display status
16_Heating
debugging
db
Light
16
Light
AE
Light
Debugging is enabled in heating mode
(debugging mode, auto-selected by system).
db
Light
16
Light
Error
code
Light
Error occurs during debugging in heating
mode.
db
Light
16
Light
J0
Light
Error of other modules occurs during
debugging in heating mode.
db
Light
16
Light
U9
Light
Outdoor pipeline and valves are not normal.
db
Light
16
Light
XXX
X/U8
Light
System detects error in indoor pipeline. XXXX
is the project no. of the faulted IDU. 3s later,
error code U8 is displayed. For example, IDU
no. 100 has U8 error, then LED3 displays like
this: 01 (2s later) 00 (2s later) U8, and repeat
again.
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
Status code
Meaning
progress
LED1
LED2
LED3
Code
Display status
code
Display status
Code
Display status
17_Debugging
finished
01-04
Light
OF
Light
OF
Light
Debugging is finished. System is on
standby condition. LED1 displays
module address. LED2 and LED3
display “OF”.
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.