14
Trouble shooting
Before reporting on the product malfunction, please check the table below.
Problem Check Solution
Screen of LCD does not show
anything.
Is power supplied correctly? After checking the power supply connection, plug in
the product again.
Is the product in screen protection
mode?
When there is no input by a user for a certain time, the
LCD will be turned off automatically.
Turn the LCD screen on with LCD ON/OFF button.
Indoor unit control does not
work.
Is the communication cable
unplugged?
Check the connection status of communication cable
between an indoor unit and outdoor unit.
Desired temperature does not
increase or decrease.
Has ‘Heat upper limit’ or ‘Cool lower
limit’ been set?
When the temperature limit is set, a user can adjust
the desired temperature within the range of the
temperature limit.
Remote controller does not
work.
Is the use of the remote controller
restricted?
If the Remote control level is set as Disable RC, you
cannot control the indoor unit with wireless or wired
remote controller.
Schedule control does not work
with the set time.
Is the set time of product different
from current time?
Set the current time again at the menu of [Setting]-
[System Settings]-[Time & Date Settings].
Modifying a schedule is not
available.
Is the schedule in operation? Modification of a schedule is available only in stop
status.
Touch-con_IB_03944A_2_EN.indd 14 2013-10-07 오후 2:11:31
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