User Manual

E-24
Troubleshooting
Detection of errors
 If an error occurs during the operation, one or more LED flickers and the operation is stopped except the LED.
 If you re-operate the air conditioner, it operates normally at first, then detect an error again.
LED Display
LED Display on the indoor unit

On Flickering X Off
 I f you turn off the air conditioner when the LED is flickering, the LED is also turned off.
 If you re-operate the air conditioner, it operates normally at first, then detects an error again.
Abnormal conditions
Indicators
Remarks
Power reset
X X X X
Error of temperature sensor in indoor
unit (OPEN/SHORT)
X X X X
Displayed on appropriate
indoor unit which is
operating
Error of heat exchanger sensor in
indoor unit
Error of heat exchanger OUT sensor in
indoor unit
Error of outlet temperature sensor in
indoor unit (OPEN/SHORT):
For heat pump models only
X X X
Displayed on appropriate
indoor unit which is
operating
Error of indoor fan motor:
Below 450RPM for 15 minutes
X X X X
Displayed on appropriate
indoor unit which is
operating
Error of outdoor temperature sensor
Error of COND sensor
Error of DISCHARGE sensor
X X X
Displayed on appropriate
indoor unit which is
operating
Displayed on outdoor unit
1. No communication for 2 minutes
between indoor unit and outdoor
unit
(communication error for more than
2 minutes)
2.
Indoor unit receiving the communication
error from outdoor unit
3. Outdoor unit tracking 3 minute error
4. When sending the communication
error from outdoor unit due to the
mismatching of the communication
numbers and installed numbers after
completion of tracking
(communication error for more than
2 minutes)
X X X
1. Error of indoor unit:
Displayed on the indoor
unit regardless of
operation
2. Error of outdoor unit:
Displayed on the indoor
unit which is operating
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