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9
TROUBLESHOOTING
Figure 9 shows shows the LED display panel. See Table 3
for a summary of display indicators. Table 4 lists problems,
possible causes, and possible solutions.
Table 3 — LED Display Indicators
*Flashing Slow = Flashing once per second.
†Flashing Fast = Flashing twice per second.
ERROR CODE
LED DISPLAY
MODE/STATUS
[NO ERROR]
Operation Light ON
Starting
Operation Light OFF
Shutdown
Operation Light Flashing Slow*
Standby
Timer Light ON
Timing ON
Timer Light OFF
Timing OFF
Defrost / Fan Light ON
System Defrost ON
Defrost / Fan Light OFF
System Defrost OFF
E0
Defrost / Fan Light Flashing Fast†
Heating / Cooling Mode Conflict Error
E1
Timer Light Flashing Fast
Communication Error Between Indoor and Outdoor Unit
E2
Operation Light Flashing Fast
Check Indoor Ambient Temperature Sensor (T1)
E3
Check Evaporator Temperature Sensor (T2)
E4
Check Evaporator Outlet Temperature Sensor (T2B)
E6
Timer Light Flashing Slow
Fan Motor Error
E7
Defrost / Fan Light Flashing Slow
EEPROM Error (Data Storage)
Ed
Alarm Light Flashing Slow
Outdoor Unit Error
EE
Alarm Light Flashing Fast
Water Level Error
FE
Operation and Timer Light Flashing Fast
Indoor Unit Turned ON but does not have an Address
F0
Wired Remote Controller Only (40WA900023)
Communication Error between Indoor Unit and Wired
Remote Controller
MANUAL
OPERATION
TIMER
DEF./FAN
ALARM
A40-1716
Fig. 9 — LED Display Panel