Odu Leds Table - Gree Ultra Heat GMV Multi VRF Heat Pump Series Service Manual

Ultra Heat GMV VRF Technical Service Manual
E
Malfunction of
casing top
F
temperature sensor
of compressor 1
J
Malfunction of
b temperature sensor
of oil return 3
AC input voltage of
P drive of inverter
compressor
AC input voltage of
H
drive of inverter fan
U
Communication
malfunction
C
between IDU and
the receiving lamp
Long-distance
A
emergency stop
Eliminate the
long-distance
n
shielding command
of IDU
For example, when E4 is displayed on the ODU, find line E and column 4 in the above tables. The
fault is shown in the intersection of the line and column: High exhaust temperature protection.

2 ODU LEDS TABLE

On the master ODU AP7, there are three LEDS and the flashing meaning is:
Flicker
Green
Times
1 Drive board
2 Reservation
3 Reservation
4 PC monitor
5 Indoor unit 1
6 Indoor unit 2
7 Indoor unit 3
8 Indoor unit 4
9 Indoor unit 5
10 Indoor unit 6
11 Indoor unit 7
12 Indoor unit 8
Malfunction of
casing top
temperature
sensor of
compressor 2
Malfunction of
temperature
sensor of oil
return 4
Overflow
distribution of IP
address
Emergency stop
of operation
Bar code inquiry
Outdoor unit is always at ON status
Reservation
Oil return
Defrosting
Limited frequency reduction for IPM temperature protection
Limited frequency reduction for PFC temperature protection
Limited frequency reduction for AC current protection
Limited frequency reduction for power protection
Limited frequency reduction for discharge temperature
protection
Limited frequency reduction for low pressure protection
Limited frequency reduction for high pressure protection
Malfunction of discharge temperature sensor of
compressor 1
Malfunction of exit
tube temperature
sensor of mode
exchanger
Communication
malfunction
between mode
exchanger and
ODU
Limit operation
Red
104
MAINTENANCE
Outdoor ambient
temperature is
beyond normal
range
Malfunction of
inlet tube
temperature
sensor of mode
exchanger
Malfunction of
Communication
network for IDU
malfunction of
and ODU of
mode exchanger
mode exchanger
Child lock status Shielding status
Length
modification of
connection pipe
of ODU
Yellow
Fan ON
Compressor ON
IPM Overcurrent for fan
IPM Overcurrent for compressor
Fan IPM protection
Compressor IPM protection
PFC overcurrent
PFC protection
Low voltage protection
High voltage protection
Low pressure protection
High pressure protection