Gree GMV-80WL A-T Manuel De L'utilisateur page 32

DC Inverter Multi VRF System User Manual
—— Debugging code
Progress
Code
07_ Detect
indoor
components
08_ Confirm
preheated
compressor
09_
Refrigerant
judgments
before
startup
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Description of each stage of debugging progress
Progress code
LED1 LED2
Display Display
Code
status
db On 07
db On 07
db On 08
db On 08
db On 09
db On 09
Status code
LED3
Display
Code
status status
XXXX
/
On On
Error
code
On OC On
On UO On
On OC On
On U4 On
On OC On
29
Code meaning and operation
method
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
circularly 00,01,d5,d6,07,92,d6,d7
every 2s.
After errors
eliminated, system will start next
step automatically. If power is off
during troubleshooting, then restart
debugging from progress 01 after
power is on.
No error on components of IDU. 2s
later, next step starts.
Preheat time for compressor is less
than 8 hours. Display will be as in
the left until the preheat time
reaches 8 hours. Press main
board's SW7 button to confirm
manually that the preheat time has
reached 8 hours. Then start next
step. (Note: Compressor may get
damaged if it is started without 8
hours of preheat time)
Compressor has been preheated
for 8 hours. 2s later, next step
starts.
System is lack of refrigerant and
display will be as in the left. Please
cut off power of IDU and ODU and
check if there is leakage on
Solve the
pipeline.
problem and complement
refrigerant into the unit. Then
connect power and
debugging from progress 01. (Note:
Before re-charging refrigerant, unit
must be power off in case system
starts progress 10 automatically.)
Refrigerant is normal and unit will
display as in the left for 2s. Then
next step starts.
show
are
leakage
restart