Gree GMV-280WM/E-X - Page 55

GMV DC Inverter VRF
52
Description of each stage of debugging progress
——
Debugging
code
Progress code
Status code
Meaning
progress
LED1
LED2
LED3
Code
Display
status
code
Display
status
Code
Display
status
10_Status
judgments of
outdoor valves
before startup
db
light
10
light
ON
light
Outdoor valves are being turned on.
db
light
10
light
U6
light
Outdoor valves are not fully turned on.
db
light
10
light
OC
light
Outdoor valves are turned on normally.
11_Calculate
refrigerant
quantity
manually
db
light
11
light
AE
light
Calculate the refrigerant quantity
manually and confirm the perfusion
status of refrigerant (the quantity of
refrigerant added into the system must
be recorded accurately).
12_Confirm
debugging
startup
db
light
12
light
AP
blink
Ready for units to start debugging.
db
light
12
light
AE
light
Manual calculation of refrigerant
quantity is set up.
13_
——
——
——
——
——
——
no meaning.
14_
——
——
——
——
——
——
no meaning.
15_Cooling
debugging
db
light
15
light
AC
light
Debugging is enabled in cooling mode
(debugging mode, auto-selected by
system).
db
light
15
light
Error code
light
Error occurs during debugging in
cooling mode.
db
light
15
light
J0
light
Error of other modules occurs during
debugging in cooling mode.
db
light
15
light
U9
light
Outdoor pipeline and valves are not
normal.
db
light
15
light
XXXX/U8
light
System detects error in indoor pipeline.
XXXX is the project no. of the faulted
IDU. 3s later, error code U8 is
displayed. For example, IDU no. 100
has U8 error, then LED3 displays like
this: 01 (2s later) 00 (2s later) U8, and
repeat again.
16_Heating
debugging
db
light
16
light
AH
light
Debugging is enabled in heating mode
(debugging mode, auto-selected by
system).
db
light
16
light
Error code
light
Error occurs during debugging in
heating mode.
db
light
16
light
J0
light
Error of other modules occurs during
debugging in heating mode.
db
light
16
light
U9
light
Outdoor pipeline and valves are not
normal.
db
light
16
light
XXXX/U8
light
System detects error in indoor pipeline.
XXXX is the project no. of the faulted
IDU. 3s later, error code U8 is
displayed. For example, IDU no. 100
has U8 error, then LED3 displays like
this: 01 (2s later) 00 (2s later) U8, and
repeat again.
17_Debugging
finished
01~04
light
OF
light
OF
light
Debugging is finished. System is on
standby condition. LED1 displays
module address. LED2 and LED3
display “OF”.