LG TPNC306SLA1 Owner's Manual page 19

Child Lock Operation Procedure
Touched the fan speed and high temperature setting keys simultaneously for 3 seconds.
The display key will be locked with beep after 3 seconds.
During Child Lock Operation
➊ Whenever you Touch any key on Display panel, it will immediately display
" ", which means Display panel is Locked.
❷ All the key on the indoor unit Display panel will not work.
❸ But the key on the remote controller will work.
For releasing child lock Operation
Press the fan speed and high temperature setting keys simultaneously for 3 seconds again.
The unit will respond with beep, Child Lock Operation will removed.
Auto restart
In case the power comes on again after a power failure, Auto Restarting Operation is the function to
operate procedures automatically to the previous operating conditions.
Maintenance and Service
Owner's Manual 19