24
TROUBLESHOOTING
Figure 40 shows the LED display panel on the indoor unit. See Table 5 for a summary of display indicators. Table 6 lists problems,
possible causes, and possible solutions.
Table 5 — LED Display Indicators
ERROR CODE LED DISPLAY MODE/STATUS
[NO ERROR]
Operation Light ON Starting
None Shutdown
Operation Light Flashing Standby
Timer Light ON Timing ON
Timer Light OFF Timing OFF
Operation and Defrost / Fan Light ON System Defrost ON
Operation and Defrost / Fan Light OFF System Defrost OFF
Operation Light ON Only fan
dd None Heating / Cooling Mode Conflict
E1 None Communication Error Between Indoor and Outdoor Unit
E2 None Check Indoor Ambient Temperature Sensor (T1)
E4 None Check Evaporator Temperature Sensor (T2B)
E5 None Check Evaporator Outlet Temperature Sensor (T2A)
E6 None Check DC Fan Motor
E7 None EEPROM Error (Data Storage)
E9 None Communication Error Between Indoor Unit and Controller
UU None MDC Error In Auto System-Check Mode
Eb None EEV Error
Ed None Outdoor Unit Error
EE None Condensate Error
FE None No Address When Power ON For First Time
LEGEND
EEPROM — Electronically Erasable Programmable Read-only Memory
EEV — Electronic Expansion Valve
MDC — Multiport Distribution Controller
Fig. 40 — LED Display Panel
MANUAL OPERATION TIMER DEF./FAN ALARM
To Next Page
Loading...
