Gree GMV-V72W/A-F Owner's Manual page 53

Ultra Heat GMV Multi VRF
C2
05_Internal
communicatio
n detection
C0
Elimination methods of above errors can be found in Troubleshooting.
Step 11: Progress 06 is "Detect outdoor components".
If no error is detected, system will display as below and then start next progress.
——
Progress
06_Detect outdoor
components
If error is detected, system will stay at current progress. Error has to be solved manually. Related
errors are:
—— Debugging Code
Progress
Code
06_Detect
Error
outdoor
code
components
Elimination methods of above errors can be found in Troubleshooting.
Step 12: Progress 07 is "Detect indoor components".
If no error is detected, system will display as below and then start next progress.
——
Progress
07_Detect indoor
components
If error is detected, system will stay at current progress. Error has to be solved manually. Related
errors are:
—— Debugging Code
Progress
Code
07_Detect XXXX/
indoor Error
components code
Elimination methods of above errors can be found in Troubleshooting.
Step 13: Progress 08 is "Confirm preheated compressor".
At first, make sure that the ODU valves connecting with IDU are opening. Main board will display:
——
Progress
Light
Light
Debugging code
LED1
Code Display status
db Light
Progress Code
LED1 LED2
Display
Code
status
Light
Debugging code
LED1
Code Display status
db Light
Progress Code
LED1 LED2
Display
Code
status
Light
Debugging code
LED1
Code Display status
Progress code
LED2
Code Display status
06
Status Code
LED3
Display Display
Code
status status
Progress code
LED2
Code Display status
07
Status Code
LED3
Display Display
Code
status status
Progress code
LED2
Code Display status
49
Communication between master ODU
and inverter compressor driver has
error.
Communication between master ODU
and IDUs has error.
Status code
Code
Light oC
Meaning
System detects that outdoor
components have error.
Status code
Code
Light oC
Meaning
System detects error on indoor
components. XXXX means the project
code of IDU with error. 3s later,
related error code will be displayed.
Status code
Code
LED3
Display status
Light
LED3
Display status
Light
LED3
Display status