Gree GMV-S280W/A-X

GMV5 Home DC Inverter Multi VRF Units
235
n9
On
00
On
00
Flicker
The nixie tube of LED2 displays kilobit and hundred-bit, nixie tube of LED3 displays ten-bit
and one-bit. For example, if the quantity of IDUs is 75, ―0075‖ is displayed.
If no button operations are performed on the master unit for five minutes, the function setting
automatically quits and the unit resumes to the current status.
Notes: The online IDU quqntity inquiry function can only inquire quantity of IDU (including
hydro box) of cooling only system.
Step 7: If the n6 fault inquiry is selected, it will display as below and enter into the
to-be-confirmed status of fault inquiry.
LED1
LED2
LED3
Function Code
Display Mode
Current Progress/Mode
Display Mode
Current Status
Display Mode
n6
Flicker
00
Flicker
00
Flicker
Press ―SW7‖ on the master unit to confirm fault inquiry.
Press SW1 (UP) or SW2 (DOWN), LED3 will alternately display the historical fault code and
module address in an interval of one second in the sequence of fault records. LED2 will display the
fault sequence number. If there are no fault records, LED2 and LED3 will display ―00‖ by default.
Up to five historical faults can be inquired. The faults that can be inquired are as below:
Code
Code
E1
High-pressure protection
P9
Inverter compressor out-of-step protection
E3
Low-pressure protection
C2
Communication failure between the master
unit and inverter compressor driver
U4
Refrigarant shortage
protection
P8
Over-high temperature protection of inverter
compressor driver module
E2
Discharge low-temperature
protection
P7
Temperature sensor failure of inverter
compressor driver module
J9
Over-low pressure ratio
protection
PF
Charge circuit failure of inverter compressor
driver
J8
Over-high pressure ratio
protection
HL
DC bus bar over-low voltage protection of
inverter outdoor fan driver
J7
Four-way valve leakage
protection
HH
DC bus bar over-high voltage protection of
inverter outdoor fan driver
E5
High-temperature protection
of compressor 1
H6
IPMInverter outdoor fan driver IPM module
protection
E6
High-temperature protection
of compressor 2
HJ
Inverter outdoor fan startup failure
J2
Over-current protection of
compressor 2
HE
Inverter outdoor fan phase lacking protection
EU
Top high-temperature
protection of compressor 1
H3
Inverter outdoor fan driver module reset
Eb
Top high-temperature
protection of compressor 2
H5
Inverter outdoor fan over-current protection
PL
DC bus bar over-low voltage
protection of inverter
compressor driver
HC
Current detection circuit failure of inverter
outdoor fan driver
PH
DC bus bar over-high voltage
protection for inverter
H9
Inverter outdoor fan out-of-step protection