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C
I
OMPLETING THE
NSTALLATION
Troubleshooting
Detection of errors
N If an error occurs during the operation, an LED flickers and the operation is stopped except the LED.
N If you re-operate the air conditioner, it operates normally at first, then detect an error again.
LED Display on the indoor unit
LED Display
Abnormal conditions
Power reset
Error of temperature sensor in indoor unit
(OPEN/SHORT)
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
Error of mixed operation
Error of indoor fan motor:
Below 450RPM for 15 minutes
Error of outdoor temperature sensor
Error of COND sensor
Error of DISCHARGE sensor
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 minutes 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)
G
On
26
E-
MH✴✴✴FKEA
MH✴✴✴FSEA
MH✴✴✴FMEA
Flickering X Off
Indicators
Green
Red
Yellow Green Orange
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Operating
X
X
X
X
X
X
Error of indoor unit:
Displayed on the indoor
unit regardless of operation
X
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