Gree GMVVQ224WM/C-X - Page 65

GMV Heat Recovery DC Inverter VRF
61
the next step of detection.
—
Debugging code
Progress code
Status code
Meaning
Progress
LED1
LED2
LED3
Code
Display
status
Code
Display
status
Code
Display
status
05_ detect
internal
communication
db ON 05 ON OC ON
Once the system
inspection is completed,
it will enter into the next
step automatically.
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
Status code
Meaning
Progress
LED1
LED2
LED3
Code
Display
status
Code
Display
status
Code
Display
status
05_ detect internal
communication
db ON 05 ON C1 ON
The system has detected
“
Communication
malfunction between main
control and DC-DC
controller
”
.
db ON 05 ON C2 ON
The system has detected
“
communication
malfunction between main
control and inverter
compressor driver
”
.
db ON 05 ON C3 ON
The system has detected
“
communication
malfunction between main
control and inverter fan
driver
”
.
db ON 05 ON CH ON
Indoor/outdoor units’
rated
capacity ratio is too high.
db ON 05 ON CL ON
Indoor/outdoor units’
rated
capacity ratio is too low.
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
Status code
Meaning
Progress
LED1
LED2
LED3
Code
Display
status
Code
Display
status
Code
Display
status
06_outdoor unit
components
inspection
db ON 06 ON OC ON
The system detected that
there’
s no fault for outdoor
unit’s parts. Then it will
automatically enter into
the next step.
If an abnormality is detected, it will stay in the current state and manual troubleshooting is required.
The corresponding faults are as below.