Specifications

Troubleshooting
100 Electrical Control System
2. Troubleshooting
2.1 Display board
2.1.1 Icon explanation on indoor display board (HKD& HND).
ION indication lamp(optional function)：This lamp illuminates when Clean Air
feature is activated.
DEFROST indication lamp(For cooling & heating models only): Lights up
when the air conditioner starts defrosting automatically or when the warm air
control feature is activated in heating operation.
OPERATION indication lamp：This lamp illuminates when the air conditioner is in
operation.
TIMER indication lamp：Lights up during Timer operation.
Temperature indicator：Displays the temperature settings when the air conditioner
is operational. Displays the malfunction code.
2.1.2 Icon explanation on indoor display board (Duct)
Temporary button
Operation lamp
Timer indicator
Infrared signal receiver
Alarm indicator
PRE-DEF indicator(cooling and heating type)
or fan only indicator(cooling only type)
FUNC
Display digital tube