Gree GMV-224WM/G-X Owner's Manual page 60

GMV DC Inverter VRF
— Debugging code
Progress
Code
05_detect
internal db
communication
If an abnormality is detected, it will stay in the current state and manual troubleshooting is required.
The corresponding faults are as below:
— Debugging code
Progress
Code
db
05_detect internal
db
communication
db
db
Refer to the part of "Troubleshooting" for the corresponding troubleshooting method.
Step 9: The unit debugging step 06 is "outdoor unit components inspection".
If there is no abnormality in the detection, the display is below, and then it automatically enters
the next step of detection.
— Debugging code
Progress
Code
06_outdoor unit
components db
inspection
If an abnormality is detected, it will stay in the current state and manual troubleshooting is required.
The corresponding faults are as below:
— Debugging code
Progress
Code
06_outdoor unit
components db
inspection
Refer to the part of "Troubleshooting" for the corresponding troubleshooting method.
Step 10: The unit debugging step 07 is "indoor unit components inspection".
Progress code
LED1 LED2
Display
Code
status
ON 05
Progress code
LED1
Display
Code
status
ON 05
ON 05
ON 05
ON 05
Progress code
LED1
Display
Code
status
ON 06
Progress code
LED1 LED2
Display
Code
status
ON 06
Status code
LED3
Display
Code
status
ON OC
Status code
LED2 LED3
Display
Code
status
ON C2
ON C3
ON CH
ON CL
Status code
LED2 LED3
Display
Code
status
ON OC
Status code
LED3
Display
Code
status
Corresponding
ON
error code
56
Meaning
Display
status
Once the system
inspection is
ON completed, it will enter
into the next step
automatically.
Meaning
Display
status
The system has detected
"communication
ON malfunction between main
control and inverter
compressor driver".
The system has detected
"communication
ON malfunction between main
control and inverter fan
driver".
Indoor/outdoor units' rated
ON
capacity ratio is too high.
Indoor/outdoor units' rated
ON
capacity ratio is too low.
Meaning
Display
status
The system detected that
there's no fault for outdoor
ON unit's parts. Then it will
automatically enter into
the next step.
Meaning
Display
status
The system detected that
ON there's fault for outdoor
unit's parts.