234
24. Troubleshooting Guide (S-71WF3E)
24.1 Self-Diagnosis Error Code Table
SUPPLEMENT
Contents of Remote Controller Switch Alarm Display
ON: Blinking:
OFF:
Abnormal
display
Wireless remote
controller
receiver display
Alarm contents
Error location
O
p
er
at
ion
Timer
Stand
by
Remote controlle
r • Indoor
Unit
E01
Faulty remote controller
Replace the remote controller
Disconnection / Contact failure of remote
controller wiring
Correct the remote controller wiring
CHK (check) pins on the indoor unit control
PCB are short circuited
Remove the short
In the case of non-group control
Power supply OFF of outdoor unit
Disconnection / Contact failure of inter-unit
wiring
In the case of group control
Automatic address operation was not carried
out
Execute auto address setting
Operating lamp
blinking
Faulty setting of EEPROM (IC010) on indoor
unit
Replace the indoor unit EEPROM
E02
Faulty remote controller
Replace the remote controller
Wrong wiring of remote controller
Correct the remote controller wiring
E03
Error in indoor unit receiving signal from remote
controller (central)
Check the indoor unit control PCB
Check the remote controller wiring
Check the inter-unit control wiring
E04
Disconnection / Contact failure of inter-unit
wiring
Check the electrical connection of inter-unit
control wiring
Replace the indoor unit control PCB
Replace the outdoor unit control PCB
Check the electrical connection of fuse
(F302) on indoor unit control PCB
In the case of the fuse opened on an indoor
unit control PCB, after correcting wiring
connection, it substitutes an EMG plug for
OC plug
Standby lamp
blinking
Faulty indoor unit control PCB
Faulty outdoor unit control PCB
Communication circuit fuse (F302) on indoor
unit control PCB opened
Fuse on outdoor unit control PCB opened
Since failure of an outdoor fan motor is
considered as a cause, both outdoor unit
control PCB and outdoor unit fan motor are
exchanged simultaneously
In the case of the fuse opened on an outdoor
unit control PCB, replace both outdoor unit
control PCB (CR/HIC) and outdoor unit fan
motor simultaneously
E08
Duplication of indoor unit address setting
Indoor unit address re-setting
E09
Operating lamp
blinking
Error because of more than one remote
controller setting to main
Correct the setting
E18
Disconnection of wiring between main unit
and additional units
Contact failure of wiring
Faulty indoor unit control PCB (main or
addition)
Correct the wiring connection
Replace the wiring
Replace the indoor unit control PCB