Samsung Electronics11-31
11-3 Self-diagnosis by LED indoor 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
Displayed on appropriate
indoor unit which is operating
Displayed on outdoor unit
Displayed on appropriate
indoor unit which is operating
Displayed on appropriate indoor unit
which is operating
Error of outdoor temperature sensor
Error of COND sensor
Error of DISCHARGE sensor
Error of mixed operation
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 temperature sensor in indoor unit
(OPEN/SHORT)
Power reset
Displayed on appropriate indoor unit
which is operating
Displayed on outdoor unit
Self-diagnostic error
(including the indoor unit not detected)
1. Error of electronic expansion valve close
2. Error of electronic expansion valve open
3. Breakaway of EVAP OUT sensor
4. Breakaway of EVAP IN sensor
5. Breakaway of COND MID sensor
6. 2
nd
detection of refrigerant completely leak
7. 2
nd
detection of high temperature COND
8. 2
nd
detection of high temperature
DISCHARGE
9. COMP DOWN due to 2
nd
detection of low
pressure switch
10. Error of reverse phase
11. Compressor down due to 6
th
detection of
freezing
12. Self-diagnosis of condensation sensor
(G8, G9)
13. Compressor down due to condensation ratio
control
Remark
Indicators
Abnormal conditions
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 the mismatching of the
communication numbers and installed
numbers after completion of tracking.
(communication error for more than
2 minutes)
24103A(1)_2 12/23/05 12:57 PM Page 6-88
To Next Page