15.3 Remote controller troubleshooting
Warning:
Certain troubleshooting steps that a professional technician may perform when investigating an error are described in this owner's manual for 
reference only. Do not attempt to undertake these steps yourself – arrange for a professional technician to investigate the problem.
If any of the following errors occur, power the unit off and contact a professional technician immediately. Do not attempt troubleshooting yourself:
A safety device such as a fuse or circuit breaker frequently blows/trips.
An object or water enters the unit.
Water is leaking from the unit.
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The fan speed cannot be adjusted
Wait for the power to come back on.
The remote controller's batteries are dead                Replace the batteries.
The  indication  on  the  display  disappears 
after a certain time
The  TIMER  ON  indicator  goes off  after  a 
certain time
No  receiving  sound from  the  indoor  unit 
when the ON/OFF button is pressed
Check  whether  the  MODE  indicated  on  the 
display is "AUTO".
Check  whether  the  MODE  indicated  on  the 
display is "DRY".
A  power  cut  has  occurred  (the  power  to  the 
premises has been cut-off).
Check whether  the timer operation has come to 
an  end  when  TIMER  OFF  is  indicated  on  the 
display.
Check whether the timer operation has come to 
an  end  when  TIMER  ON  is  indicated  on  the 
display.
Check  whether  the  signal  transmitter  of  the 
remote  controller  is  properly  directed  to  the 
infrared  signal  receiver  of  the  indoor  unit  when 
the ON/OFF button is pressed.
In  automatic  mode
,  the  air  conditioner 
will  automatically  change  the  fan’s 
speed.
When  dry  mode  is  selected,  the  air 
conditioner automatically adjusts the fan 
speed. (The fan speed can be selected 
during  "COOL",  "FAN  ONLY",  and 
"HEAT".)
The air conditioner operation will stop up 
to the set time.
Up to the set time, the air conditioner will 
automatically  start and  the  appropriate 
indicator will go off.  
Directly transmit the signal transmitter of 
the  remote  controller  to  the 
infrared Ssignal receiver of the indoor unit, 
and then press the ON/OFF button twice.
The remote controller signal is not 
transmitted even when the ON/OFF button 
is pushed
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