GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
125
Chapter 4 Maintenance
Part 1 Failure Code Table
1. System Failure Code Table
GREE VRF Display Code (1)
Indoor unit fault
(unified)
Auxiliary heating
protection
Water overflow
protection
Power supply
over-current protection
Inconsistent number of
multi-split IDUs
Inconsistent series of
multi-split IDUs
Warning about poor air
quality
Mismatching indoor
and ODU models
Intake
temperature
sensor fault
Middle
temperature
sensor fault
Exhaust
temperature
sensor fault
Water
temperature
sensor fault
Indoor unit
network address
exception
Wired controller
PCB exception
Volume dial switch
setting exception
Air outlet
temperature
sensor fault
GREE VRF Display Code (2)
Outdoor unit fault (unified)
Low exhaust temperature
protection
High exhaust temperature
protection
High exhaust temperature
protection for compressor 1
High exhaust temperature
protection for compressor 2
High exhaust temperature
protection for compressor 3
High exhaust temperature
protection for compressor 4
High exhaust temperature
protection for compressor 5
High exhaust temperature
protection for compressor 6
Exhaust temperature sensor
falling protection for
compressor 1
Exhaust temperature sensor
falling protection for
compressor 2
Exhaust temperature sensor
falling protection for
compressor 3
Exhaust temperature sensor
falling protection for
compressor 4
Exhaust temperature sensor
falling protection for
compressor 5
Exhaust temperature sensor
falling protection for
compressor 6
High cover temperature
protection for compressor 1
High cover temperature
protection for compressor 2