35
EN
G
LIS
H
Troubleshooting
Detection of errors
LED Display on the receiver & display unit
LED Display
If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
On
Flickering
Off
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.
Abnormal conditions
LED lamp display
Remarks
Operation Defrost Timer Air flow Filter
Power reset
X
X
X
X
Error of temperature sensor
in the indoor unitt (Open/Short)
X
X
X
X
Error of heat exchanger sensor
in the indoor unit
X
X
X
Error of the outdoor temperature sensor
Error of the condensor temperature sensor
Error of the discharge temperature sensor
X
X
X
1. No communication for 2 minutes
between indoor units
(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 the outdoor unit, the
mismatching of the communication num-
bers and installed numbers after comple-
tion of tracking
(Communication error for more than 2 minutes)
X
X
X
1. Indoor unit
error
(Display is
unrelated with
operation)
2. Outdoor unit
error
(Display is
unrelated with
operation)
Summary of Contents for NS 4CREA Series
Page 1: ......