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Appendix
Troubleshooting
The table below list the self-diagnostic routines. For some of error, you must
contact an authorized service center.
If an error occurs during the operation, it is displayed on the outdoor unit HUB PCB.
The error codes in the list are for reference only. They are not displayed on the
outdoor unit HUB PCB.
If an error occurs while the product is operating normally, all LEDs of the A part
are turned off.
If an error occurs during the installation, the green LED of the A part turns on. Take
corrective actions, and then see Setting the indoor unit addresses automatically on
page 26 and proceed with setting the indoor unit addresses again.
: On,
: Off,
: Blinking
Display (B part)
Red
Green
Yellow
Error
Explanation
Code
E563 Console indoor connection Error
E458 Outdoor Fan Error
Compressor OLP sensor error (Short/
E320
Open)
E465 Compressor Vlimit Error
E500 Inverter IPM over heat error
E470 Outdoor unit EEPROM Error
Inverter micom option read/write
E471
error
The refrigerant leaks completely from
E554
the outdoor
Inverter compressor starting failure
E461
(5 times)
Outdoor unit freezing - Safety control
E401
(Compressor stop)
Outdoor unit overload - Safety control
E404
(Compressor stop)
High temperature(over 30°C) or low
E440
as heating mode
Low temperature(under -10°C) of
E441
outdoor as cooling mode
Compressor trip by OLP temperature
E463
control mode
K1
ON
DIP
1
2
3
4
Dip Switch
LED
(RED, GRN / RED, GRN, YEL)
A
B
Remark
Check if the console indoor unit is
connected first.
K3
English
39
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