Gree CM100N1320, Service Manual

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GREE GMV5 INDOOR UNIT SERVICE MANUAL
73
Parameter
Code
Parameter Name Parameter Range Default Value Remark
A7
Silent function of
ODU
00: no silent function
01-09: intelligent
nighttime silent mode
10-12: forcible silent
mode
00
Enter query in
“A7” status. The
temperature area displays the
function code and the timer area
displays the corresponding function
setting value.
Note:
In parameter setting status,
“FAN”, “TIMER”, “SLEEP”, and “SWING” are invalid. By pressing the
“ON/OFF” button, users can return to the main interface but not power on/off the unit.
In parameter setting status, signals of the remote controller are invalid.
5.1.7 Failure Display
When a fault occurs during the system operation, the temperature area of wired controller displays
the fault code. When multiple faults occur, fault codes are circularly displayed.
◆
When a fault occurs, power off the unit and ask for professional maintenance personnel for help.
The following figure shows the power-on high-pressure protection fault interface.
Power-on High-pressure Protection Fault Interface
Note:
If the IDU connected with the current wired controller is a fresh-air IDU,
“FAP” is displayed on the
main interface of the wired controller. Only the outlet temperature can be set for the fresh-air IDU. For the
setting method, see the
“IDU Function Settings” section.