Gree GMV6 DC Inverter VRF Units Service Manual
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The master unit memorizes this setting and does not clear it even upon power failure and power-on
again. The default value is 00. Mode 00 indicates that this function is off, and 01 indicates that this function
is on.
4.2.4 Outdoor Unit Status Query
The following functions can be queried:
Function Code
Function Name
n6
Fault query
n7
Parameter query
n8
Indoor unit engineering SN query
n9
Online indoor unit qty query
nb
Outdoor unit barcode query
After the unit is powered, you can query the function setting status, historical fault record, indoor unit
engineering number and real-time parameter of the unit in any status. The query method is as follows:
On the master unit, press and hold the SW2 down button for over 5 seconds. The master unit displays
the current function setting status, and other modules display based on their current status. Press the
SW1 up button and the SW2 down button on the master unit to select the corresponding query. The
default selection is A7.
In function query status, if there are two levels of menus, you can press the SW4 back button to
return to the previous level. Press the SW4 query button again to exit query status.
In function query status, if you do not press any button on the master unit in 5 minutes, the system
will automatically exit the current screen and the unit will resume displaying the current status.
4.2.4.1 n6 Fault Query
Press the SW1 up button and the SW2 down button to select fault query. The master unit displays
as follows:
LED1
LED2
LED3
Function Code
Display status
Current
process/mode
Display status
Current status
Display status
n6
Blinks
00
Blinks
00
Blinks
Press the SW3 confirm button on the master unit to confirm the selection.
Introduction:
This function is used to query historical faults in the system. Up to five historical faults can be stored
in the order of time.
Operations:
In fault query status, press the SW1 up button and the SW2 down button. LED3 circularly displays
the code and address of the faulty module in history in the order of time (at an interval of 1s), and LED2
displays the fault sequence number. If there is no historical fault, LED2 and LED3 display "00" by default.
Up to five latest historical faults can be queried. Faults that can be stored and queried are as follows:
Summary of Contents for GMV6 Series
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