4-48
4
• The outdoor unit maintenance remote controller can be used to check the alarm display.
The number of times that LED 1 and 2 blink on the outdoor unit control PCB can be used to check the alarm display.
(Refer to "Checking the LED 1 and 2 Alarm Display on the Outdoor Unit Control PCB.")
Alarm
Code
Alarm Meaning
Outdoor Unit Failed to Receive Serial Communication Signals from Indoor Unit
Error in Indoor Unit Transmitting Signal to the Outdoor Unit
Error in Indoor Unit Receiving Signal from the Outdoor Unit
Error in Indoor Unit Receiving Signal from Remote Controller (central)
Remote Controller Transmission Error
Remote Controller Reception Error
Automatic Address Alarm (The total capacity of indoor units is too low.)
Main Unit duplication in Simultaneous-operation Multi Control (detected outdoor unit)
Connection Problem of Indoor/Outdoor Units.
Faulty Communication in Group Control Wiring
Automatic Address Alarm (The total capacity of indoor units is too high or the total number of indoor units is
too many.)
Intermediate Temperature Sensor (C2) in Heat Exchanger Trouble
Inlet Temperature Sensor (C1) in Heat Exchanger Trouble
Compressor Discharge Temperature Sensor (TD) Trouble
F04
F06
F07
F08
F12
F31
Outdoor Unit Nonvolatile Memory (EEPROM) Trouble
Compressor Inlet Suction Temperature Sensor (TS) Trouble
Outdoor Air Temperature Sensor (TO) Trouble
H01
H02
H03
H31
HIC Trouble
Primary Current CT Sensor (current sensor) Failure
Outdoor Unit Capacity not Set or Invalid
4-way Valve Operation Failure
L04
L10
L18
L13
Indoor Unit Type Setting Error
Outdoor Unit Address Duplication
PAM Trouble
Primary (input) Overcurrent Detected
E01
E02
E03
E04
E05
E06
E14
E15
E18
E20
E16
E08
E09
E12
Automatic Address Setting Start is Prohibited while Auto-address Setting in Progress.
More Than One Remote Controller Set to Main Error
Duplicate Indoor Unit Address Settings Error
Compressor Overcurrent Trouble
Insufficient Gas Level Detected
O
2
Sensor Detect
Alarm Valve Open
AC Power Supply Trouble
High Pressure Trouble
Compressor Discharge Temperature Trouble
P03
P04
P05
P13
P14
P16
P15
P22
P29
P31
Lack of INV compressor wiring, INV compressor actuation failure (including locked), DCCT failure
Group Control Error
Outdoor Unit Fan Motor Trouble
SM830231-02̲Single̲欧州.indb 48
SM830231-02̲Single̲欧州.indb 48
2014/09/09 21:15:48
2014/09/09 21:15:48