Gree GMV-VQ680WM/C-X Service Manual page 70

Gree
Under voltage protection for the DC bus of
14
inverter compressor driver
Over voltage protection for DC bus of the inverter
15
compressor driver.
IPM module protection for the inverter
16
compressor driver.
17 Inverter compressor startup failure
18 Inverter compressor phase loss protection.
19 Inverter compressor driver module reset.
The figure below shows the Debug page.
LED1
Function Code Display status
n6
n6
n6
n6
n6
If historical faults are less than five, after the last fault is displayed, LED2 and LED3 display 00,
indicating no more fault.
In fault query status, press and hold the SW3 confirm button for over 5 seconds to clear all historical
faults of the outdoor unit.
4.1.2.4.2 n7 Parameter Query
Press the SW1 up button and the SW2 down button to select parameter query. The master unit
displays as follows:
LED1
Function Code Display status
n7
Press the SW3 confirm button on the master unit to confirm the selection.
Introduction:
This function is used to query running parameters of each module of the outdoor unit in real time.
Operations:
In parameter query status, the master unit displays as follows:
LED1
Function Code Display status
n7
n7
n7
n7
Press the SW1 up button and the SW2 down button to select the corresponding query module, and
press the SW3 confirm button. The unit displays as follows:
LED1
Function Code Display status
n7
LED2 displays the module parameter code, and LED3 displays the specific value. The parameters
Sequence
On 01
On 02
On 03
On 04
On 05
Current process/mode
Blinks 00
Module address
On 01
On 02
On 03
On 04
Parameter code
On XX
GMV6 HR DC Inverter VRF Units Service Manual
33 Inverter outdoor fan over-current protection.
Current detection circuit fault of the inverter
34
Loss of synchronization protection for the inverter
35
Communication fault between the primary
36
controller and inverter outdoor fan driver.
Over temperature protection for the inverter
37
Temperature sensor fault of the inverter outdoor
38
LED2
Display status
On
On
Historical fault/module
On
On
On
LED2
Display status
Blinks
LED2
Display status
Blinks
Blinks
Blinks
Blinks
LED2
Display status
On
68
outdoor fan driver.
outdoor fan.
outdoor fan driver module.
fan driver module.
LED3
Current status Display status
Alternated
Alternated
Alternated
address
Alternated
Alternated
LED3
Current status Display status
00
LED3
Current status Display status
00
00
00
00
LED3
Current status Display status
Value
Blinks
Blinks
Blinks
Blinks
Blinks
Blinks