Gree GMV5 Series Service Manual page 115

db
For details about the above troubleshooting method, refer to the "Troubleshooting Method" part.
Step 10: Unit commissioning step 06 is component detection for ODU.
If no exception is detected, the main board is displayed as follows and the unit automatically enters the
next commissioning step.
Commissioning Code
Progress
Code
06_Component
detection for
ODU
db
If an exception is detected, the unit retains the current status and waits for manual troubleshooting.
Corresponding faults include:
Commissioning Code
Progress
Code
06_Component
detection for
ODU db
For details about the above troubleshooting method, refer to the "Troubleshooting Method" part.
Step 11: Unit commissioning step 07 is component detection for IDU.
If no exception is detected, the main board is displayed as follows and the unit automatically enters the
next commissioning step.
Commissioning Code
Progress
Code
07_Component
detection for
IDU
db
If an exception is detected, the unit retains the current status and waits for manual troubleshooting.
Corresponding faults include:
Commissioning
Progress
Code
07_Component
detection for
IDU db
"XXXX" indicates the project number of the faulty IDU. The corresponding fault code is displayed after
three seconds. For example, if a d5 fault occurs on IDU 100, LED3 will circularly display "01", "00" (two
seconds later), and "d5" (two seconds later).
For details about the above troubleshooting method, refer to the "Troubleshooting Method" part.
Step 12: Unit commissioning step 08 is compressor preheating confirmation.
If it is detected that the compressor preheating period is more than eight hours, the main board is
GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
On
LED1
Display
Status Code
On
Progress Code
LED1
Display
Status Code
On 06
LED1
Display
Status Code
On
Code Progress Code
LED1 LED2
Display Display
Status Code Status
On 07
05 On CL
Progress Code
LED2
Display
Status Code
06 On OC
Status Code
LED2
Display
Status Code
Corresponding
On fault code
Progress Code
LED2
Display
Status Code
07 On OC
Status Code
LED3
Code
XXXX/Corresponding
On fault code
112
ODUs.
The rated capacity
ratio is over-low
between indoor and
On ODUs.
Status Code
LED3
Display
Status
The system detects
that no ODU
component fails and
automatically enters
On the next step.
LED3
Display
Status
The system detects
component failure
On of ODU.
Status Code
LED3
Display
Status
The system detects
that no IDU
component fails
and automatically
On enters the next step.
Display
Status
The system detects
component failure
On of IDU.
Meaning
Meaning
Meaning
Meaning