38
Troubleshooting
Abnormal conditions
Error
code
LED Display
1. COND mid sensor is detached
2. Refrigerant leakage (2nd detection)
3. Abnomally high temperature on Cond (2nd detection)
4. Low pressure s/w (2nd detection)
5. Abnomally high temperature on discharged air on outdoor
unit (2nd detection)
6. Indoor operation stop due to unconfirmed error on
outdoor unit
7. Error due to reverse phase detection
8. Comp stop due to freeze detection (6th detection)
9. High pressure sensor is detached
10. Low pressure sensor is detached
11. Outdoor unit copression ration error
12. Outdoor sump down_1 prevetion control
13. Compressor down due to low pressure sensor prevention
control_1
14. Simultaneous opening of cooling/heating MCU SOL
valve (1st detection)
15. Simultaneous opening of cooling/heating MCU SOL
valve (2nd detection)
Other outdoor unit self-diagnosis error that is not on the
above list
E241
E554
E450
E451
E416
E559
E425
E403
E301
E306
E428
E413
E410
E180
E181
Flowating s/w (2nd detection)
E153
EEPROM error
E162
EEPROM option error
E163
Error due to incompatible indoor unit
E164
●
On
Flickering
Off
f
If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
f
If you re-operate the air conditioner, it operates normally at first, then detect an error again.
f
When E108 error occurs, change the address and reset the system.
Ex.) When address of the indoor unit #1 and #2 are set as 5, address of the indoor unit #1 will become 5 and indoor unit
#2 will display E108, A002.
Summary of Contents for Duct Type Series
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