Samsung AFPCC052CA0 Installation Manual page 20

Troubleshooting (cont.)
Receiver & Display Unit
Detection of errors
If an error occurs during the operation, an 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
Power reset
Error of temperature sensor in indoor unit
(OPEN/SHORT)
Error of temperature sensor in outdoor heat
exchanger (OPEN/SHORT)
Error of outdoor temperature sensor
Error of temperature sensor in outdoor heat exchanger
Error of DISCHARGE sensor (OPEN/SHORT)
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 out-
door unit the mismatching of the communication
numbers and installed numbers after completion
of tracking. (communication error for more than
2 minutes)
Communication error between indoor units
On
If 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 detect an error again.
20
E-
Abnormal conditions
Flickering X Off
Indicators
X X X
X X X
X X
X X
X X
X X
Operating
Displayed on appropriate indoor
unit which is operating
Displayed on all appropriate
indoor units which are operating
Displayed all appropriate indoor
units which are operating
Displayed on outdoor unit
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
Indoor units for centralized / group
control