Gree GMV-VQ680WM/C-X Service Manual page 62

Gree
NOTES!
①
A module can set only one compressor to emergency mode;
②
The compressor emergency operation mode is valid only in single-module
multi-compressor system;
③
The default status is 00.
④
The system cannot run continuously for more than 24 hours in compressor emergency
operation status. If it exceeds 24 hours, the entire system is forcibly stopped, and the
indoor unit displays the "Ad" limit operation code.
4.1.2.3.12 C9 Fan Failure Emergency Operation
This function is after-sales emergency setting when a fan on a dual-fan module works abnormally. It
shields the abnormal fan in a short time to ensure the emergency operation of the system.
Setting steps:
Enter the function setting on the main board of the faulty basic module. The module displays as
follows:
LED1
Function code Display status
C9
Press the SW1 up button and the SW2 down button to select the corresponding compressor
emergency operation status.
LED1
Function Display
code status
C9 On
C9
On
C9
On
After selecting the corresponding value, press the SW3 confirm button. All modules display as
follows:
LED1
Function code Display status
C9
C9
C9
The basic module memorizes this setting and does not clear it even upon power failure and
power-on again. The default value is 00.
Then, press the SW4 back button to return to the previous process. (During setting, press SW4 to
return to the previous process. If the setting is completed, press SW4 to resume the unit to the current
normal working status.)
Current process
On 00
LED2
Current Display
process status
00 Blinks
01 Blinks
02 Blinks
Mode
On 00
On 01
On 02
GMV6 HR DC Inverter VRF Units Service Manual
LED2
Display status Current status
Blinks
LED3
Current Display
status status
OC Blinks
OC Blinks
OC Blinks
LED2
Display status Current status
On
On
On
60
LED3
Display status
OC Blinks
Description
Fans 1 and 2 run normally.
The operation of fan 1 is
shielded.
The operation of fan 2 is
shielded.
LED3
Display status
OC On
OC On
OC On