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Remote control display
E26
E27
E29
E30
E31
F04
F05
F06
F07
F08
F12
F14
F16
F17
F23
F24
F31
H01
H03
H05
H06
H07
H08
H11
H13
H15
H21
H27
H31
L04
L05
L06
L10
L17
P03
P04
P05
P14
P15
P16
P17
P19
P22
P26
P29
P31
The number of responding outdoor units does not match with the setting on the main outdoor unit.
Improper wiring between main and sub outdoor units.
No response from main outdoor unit.
The outdoor unit is having error in sending serial communication signal on main-sub communication line.
Error in communication inside outdoor unit control box.
Compressor 1 discharge temperature sensor has failure. (DISCH1)
Compressor 2 discharge temperature sensor has failure. (DISCH2)
Outdoor unit heat exchanger 1 gas temperature sensor has failure. (EXG1)
Outdoor unit heat exchanger 1 liquid temperature sensor has failure. (EXL1)
Outdoor temperature sensor has failure. (TO)
Compressor inlet temperature sensor has failure. (SCT)
Subcooling heat exchanger temperature sensor has failure. (SCG)
High pressure sensor has failure. (HPS)
Low pressure sensor has failure. (LPS)
Outdoor unit heat exchanger 2 gas temperature sensor has failure. (EXG2)
Outdoor unit heat exchanger 2 liquid temperature sensor has failure. (EXL2)
EEPROM on outdoor unit PCB has failure.
Compressor 1 primary current is overcurrent.
Compressor 1 current sensor is disconnected or shorted.
Compressor 1 discharge temperature sensor is disconnected, shorted or misplaced. (DISCH1)
Low pressure sensor value is too low.
Compressor or refrigerant circuit has low oil.
Compressor 1 oil temperature sensor has failure. (OIL1)
Compressor 2 primary current is overcurrent.
Compressor 2 current sensor is disconnected or shorted.
Compressor 2 discharge temperature sensor is disconnected, shorted or misplaced. (DISCH2)
Compressor 2 HIC has failure. HIC is overcurrent or overheat. VDC is undervoltage or overvoltage.
Compressor 2 oil temperature sensor has failure. (OIL2)
Compressor 1 HIC has failure. HIC is overcurrent or overheat. VDC is undervoltage or overvoltage.
Duplicate system address setting on outdoor units.
Two or more indoor units are set as priority indoor unit (priority indoor unit).
Two or more indoor units are set as priority indoor unit (non-priority indoor unit).
Capacity setting of outdoor unit is not correct.
Model mismatch between outdoor units.
Compressor 1 discharge temperature is too high.
High pressure switch is activated.
Compressor 1 AC power supply has abnormal.
O
sensor has activated.
2
Compressor 2 AC power supply has abnormal.
Compressor 1 secondary current is overcurrent.
Compressor 2 discharge temperature is too high.
Compressor 2 start failure. Compressor 2 is missing phase.
Outdoor unit fan motor has failure.
Compressor 2 secondary current is overcurrent.
Compressor 1 start failure. Compressor 1 is missing phase.
Other indoor unit in group control has an alarm.
Alarm contents
68
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