Gree GMV-280WL/C1-X

DC Inverter Multi VRF System
23
Description of each stage of debugging progress
—
Debugging code
Progress code
Status code
Code meaning and operation method
Progress
LED1
LED2
LED3
Code
Display
status
Code
Display
status
Code
Display
status
05_ Detect
ODU’s internal
communication
and capacity
ratio
db On 05 On C2 On
Communication between master ODU
and driver has error. Check the
communication connection of ODU’s
main board and drive board. When the
error is eliminated, start next step. If
power is off during troubleshooting, then
restart debugging from progress 01 after
power is on.
db On 05 On OC On
Communication of master ODU and
driver is normal. Unit will display as in the
left for 2s and detect the capacity ratio of
IDU and ODU. If the ratio is within range,
then next step will start 2s later. If the
ratio is out of range, unit will display as
below.
db On 05 On CH On
Rated capacity ratio of IDU is too high.
Change the combination way of IDU and
ODU to make the ratio within range.
And
restart debugging from progress 01.
db On 05 On CL On
Rated capacity ratio of IDU is too low.
Change the combination way of IDU and
ODU to make the ratio within range.
And
restart debugging from progress 01.
06_ Detect
outdoor
components
db On 06 On
error
code
On
Outdoor component’s error. LED3 will
display the related error code. After
errors are eliminated, system will start
next step automatically. If power is off
during troubleshooting, then restart
debugging from progress 01 after power
is on.
db On 06 On OC On
System detects no error on outdoor
component. 10s later, next step starts.
07_ Detect
indoor
components
db On 07 On
XXXX/
Error
code
On
System detects error on indoor
components. XXXX means the project
code of IDU with error. 3s later, related
error code will be showed. For instance,
if no.1 IDU has d6 and d7 errors, then
the LED3 digital tube will show circularly
00, 01, d5, d6, 07, 92, d6, d7 every 2s.
After errors are eliminated, system will
start next step automatically. If power is
off during troubleshooting, then restart
debugging from progress 01 after power
is on.
db On 07 On OC On
No error on components of IDU. 2s later,
next step starts.