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Gree
Deubugging
—
code
LED1
Progress
Code
db
08_compress
or reheat
db
comfirmation
db
09_refrigerant
judge before
startup
db
10_ status
db
judgment of
db
main pipeline
before
db
starting
11_ reserved
db
function
12_ reserved
db
function
db
db
db
13~15_ pilot
run stage
db
db
Note: In the pilot run stage, the unit will display corresponding procedures according to actual
circumstances.
When master module displays as below, the complete unit has conducted the debugging and it
stays at the standby status.
Debugging code
LED1
Display
Code
status
01~04
ON
NOTE!
In commissioning status and before the above commissioning processes are completed, when the
Instruction for each stage progress at the time of debugging
Progress code
LED2
Display
Display
Code
status
status
ON
08
ON
ON
08
ON
ON
09
ON
ON
09
ON
ON
10
ON
ON
10
ON
ON
10
ON
ON
11
ON
ON
12
ON
13/14/1
ON
ON
5
13/14/1
ON
ON
5
Correspo
13/14/1
ON
ON
5
13/14/1
ON
ON
5
13/14/1
ON
ON
XXXX/U8
5
Progress code
LED2
Display
Code
status
OF
ON
GMV6 HR DC Inverter VRF Units Service Manual
Status code
LED3
Display
Code
status
U0
ON
Preheat time for compressor is insufficient.
Preheat time for compressor is enough. Enter
OC
ON
into the next step automatically.
The system refrigerant is insufficient. Please
U4
ON
charge the refrigerant until the fault is
eliminated.
The system refrigerant judge is normal. Enter
OC
ON
into the next step automatically.
ON
ON
Starting up the operation.
U6
ON
Main pipeline status is abnormal.
OC
ON
Main pipeline status is normal.
—
AE
ON
—
01
ON
AC
ON
Test run under heating mode.
AH
ON
Test run under cooling mode.
nding
There is fault in the pilot run stage.
ON
error
Note: fault module display.
code
There is fault in the pilot run stage.
J0
ON
Note: non-fault module display.
The system detected the indoor unit's pipeline
is abnormal. XXXX indicates the engineering
number of fault indoor unit. Error code U8 is
ON
displayed after 2s. For example, if the U8 fault
occurs in the No. 100 indoor unit, LED3
displays as follows: 01 (after 2s) 00 (after 2s)
U8, and they will be displayed circularly.
Status code
LED3
Display
Code
status
The complete unit has conducted the
debugging and the unit is under standby status.
OF
ON
LED1 displays module address; LED2 and
26
Meaning
Meaning
LED3 displays "OF".
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Troubleshooting
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