Troubleshooting; Led Display - Samsung Cassette Type Series Installation Manual

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 on the receiver & display unit

LED Display

Abnormal conditions
Power reset
Error of temperature sensor
in the indoor unitt (Open/Short)
Error of heat exchanger sensor
in the indoor unit
Error of indoor fan motor:
(Keeps running below 450RPM for
15 seconds)
Error of the outdoor temperature sensor
Error of the condensor temperature sensor
Error of the discharge temperature sensor
(Open/Short)
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
numbers and installed numbers after
completion of tracking
(Communication error for more than 2 minutes)

On
 If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
16
E-
Flickering X Off
LED lamp display
X X X
X X X
X X
X X X
X X
X X
Remarks
Displays an error on the related
indoor unit.
Displays an error on the related
indoor unit.
Confirm the connections of
CN73 and CN44.
1. Indoor unit error
(Display is unrelated with
operation)
2. Outdoor unit error
(Display is unrelated with
operation)