GMV DC Inverter VRF
55
(4) Display instruction for each stage progress at the time of debugging:
Instruction for each stage progress at the time of debugging
——
Debugging
code
Progress code
Status code
Meaning
Progress
LED1
LED2
LED3
Code
Display
status
Code
Display
status
Code
Display
status
01_ set up
master unit
db
ON
01
ON
A0
ON
Undebugged status.
db
ON
01
ON
CC
ON
The system hasn't set master module. It needs
to reset it.
db
ON
01
ON
CF
ON
The system has set more than 2 master
modules. It needs to reset it.
db
ON
01
ON
OC
ON
Master module setting is succeeded. It will
automatically enter into the next step.
02_
a
llocate
addresses
db
ON
02
ON
Ad
Flash
The system is conducting the address
assignment.
db
ON
02
ON
OC
ON
Address assignment is succeeded. It will
automatically enter into the next step.
03_module
qunaity
confirmation
db
ON
03
ON
01~04
Flash
LED3 displays the module quantity. It needs to
manually confirm the module quantity.
db
ON
03
ON
OC
ON
Once the system module quantity is confirmed,
it will automatically enter into the next step for
judgment.
04_indoor
unit's quantity
confirmation
db
ON
04
ON
××/ The
quantity
of online
indoor
units
Flash
LED3 displays the quantity of online indoor
units.
db
ON
04
ON
OC
ON
Indoor unit's quantity inspection is finished.
Enter into the next step automatically.
05_ detect
internal
communicatio
n
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 unit's “rated capacity ratio is too
high”.
db
ON
05
ON
CL
ON
Indoor/outdoor unit's “rated capacity ratio is too
low”.
db
ON
05
ON
OC
ON
System inspection is finished. Enter into the
next step automatically.
06_ outdoor
unit's internal
components
confirmation
db
ON
06
ON
correspod
ing error
code
ON
The system has detected the fault of outdoor
unit's components.
db
ON
06
ON
OC
ON
The system detected that there's no outdoor
unit fault. Enter into the next step
automatically.