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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 19 and proceed with setting the indoor unit addresses again.
: On,
: Off,
: Blinking
Display (B part)
Red
Green Yellow
30
English
Error
Explanation
Code
E201
The number of indoor unit mismatched
Communication errer between the outdoor and
E202
indoor unit
Outdoor communication error between main
E203
micom and inverter micom
Outdoor communication error beween main
E206
micom and hub micom
E221
Outside temperature sensor error (Short/Open)
E237
Condenser temperature sensor error (Short/Open)
Compressor Discharge temperature sensor error
E251
(Short/Open)
E320
Compressor OLP sensor error (Short/Open)
E330
EvaIn1 Sensor error (Short/Open)
E331
EvaIn2 Sensor error (Short/Open)
E332
EvaIn3 Sensor error (Short/Open)
E333
EvaIn4 Sensor error (Short/Open)
E334
EvaIn5 Sensor error (Short/Open)
E335
EvaOut1 Sensor error (Short/Open)
E336
EvaOut2 Sensor error (Short/Open)
E337
EvaOut3 Sensor error (Short/Open)
E338
EvaOut4 Sensor error (Short/Open)
E339
EvaOut5 Sensor error (Short/Open)
K1
K3
ON
DIP
1
2
3
4
Dip Switch
LED
(RED, GRN / RED,GRN, Y EL)
A
B
Remark
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