If you experience problems, please contact a qualified service technician.
Owner’s manual _18
17_ TROUBLESHOOTING
A) Error indicator (E1 to E5) for models: 9SRA-HE and 12SRAI-HE
B) Error indicator (Yellow LED) for models: 15SRAI-HE, 18SRAI-HE and 24SRAI-HE
#
Error Contents
Error indication
Diagnostic Method
1
Room temperature thermistor
defective
CODE (E1) or
Yellow LED off for 2 secs,
then flashes 1 time
The detection value of the outdoor temperature
thermistor is either open or shorted.
•
Check thermistor resistance value
•
Controller PCB defective
2
Indoor heat exchanger
thermistor error
CODE (E2) or
Yellow LED off for 2 secs,
then flashes 2 times
The detection value of the outdoor temperature
thermistor is either open or shorted.
•
Check thermistor resistance value
•
Controller PCB defective
3
Indoor evaporator fan motor
trouble
CODE (E3)
or
Yellow LED off for 2 secs,
then flashes 3 times
Either the indoor fan motor abnormal current or
location error was detected (Permanent stop)
•
Fan motor connector loose / defective
contact
•
Fan motor defective
•
Controller PCB defective
4
Trouble at the communication
level
CODE (E4) or
Yellow LED off for 2 secs,
then flashes 4 times
The wire connected on terminal 1 is loose
(defective contact)
5
Trouble detected by the room
condenser sensor
CODE (E6) or
Yellow LED off for 2 secs,
then flashes 6 times
The detection value of the outdoor temperature
thermistor is either open or shorted.
•
Check thermistor resistance value
•
Controller PCB defective
6
High and low pressure switch
trouble
CODE (E9)
or
Yellow LED off for 2 secs,
then flashes 9 times
Low pressure protection has been activated
-
Permanent stop after 5 minutes time
delay
•
Check if the 2 way valve or 3 way valve
are left closed
•
Refrigerant leak (Check pressures)
•
Check LPS wire connections
•
Low pressure switch defective
Excessive high pressure protection has been
activated
-
Permanent stop after 5 minutes time
delay
•
Heat radiation is blocked (Inlet / outlet)
•
Check if the outdoor fan motor is
defective (does not rotate)
•
Check HPS wire connections
•
High pressure switch defective
•
Refrigeration cycle defective
7
Outdoor condenser fan motor
trouble
CODE (EC)
or
Yellow LED off for 2 secs,
then flashes 13 times
Either the outdoor fan motor abnormal current or
location error was detected
-
Permanent stop
•
Fan motor connector loose / defective
contact
•
Fan motor defective
•
Controller PCB defective
