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

Ultra Heat GMV VRF Technical Service Manual_Heat Recovery Serial

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
13 Indoor unit 9
14 Indoor unit 10
15 Indoor unit 11
16 Indoor unit 12
17 Indoor unit 13
18 Indoor unit 14
19 Indoor unit 15
20 Indoor unit 16
21 Indoor unit 17
22 Indoor unit 18
23 Indoor unit 19
24 Indoor unit 20
25
26
27
28
29
30
31
Outdoor unit is always at ON status
Reservation
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 outdoor ambient temperature sensor
Malfunction of outdoor defrosting temperature sensor
Malfunction of suction temperature sensor
Malfunction of sub-cooler liquid tube temperature sensor
Malfunction of sub-cooler gas tube temperature sensor
Malfunction of low-pressure sensor
Malfunction of high-pressure sensor
Fan protection
Malfunction of discharge temperature sensor of
compressor 2
Malfunction of outlet temperature of gas-liquid separator
Red
Oil return
121
MAINTENANCE
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
High-pressure switch protection
Drive charging circuit
malfunction of compressor
AC current protection
Malfunction of EEPROM chip
Phase-lacking of PFC
Phase-reversed of PFC
Reservation
Power protection of compressor
Discharge protection for
compressor
Refrigerant-lacking protection