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To prevent injury to the user or other people and property damage, the following
instructions must be followed.
• Incorrect operation due to ignoring instruction will cause harm or damage. The
seriousness is classified by the following indications.
!
WARNING
This symbol indicates the possibility of death or serious injury.
CAUTION
!
This symbol indicates the possibility of injury or damage to properties only.
• Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
Dangerous Voltage.
Copyright © 2023 LG Electronics Inc. All rights reserved.
Only training and service purposes.
SAFETY PRECAUTIONS
Cautions in Repair
-2-
WARNING
!
Do not turn on the breaker or power under condition that front panel, rear
panel, top cover, or control box cover is removed or opened. Otherwise, it
may cause fire, electric shock, explosion or death.
Be sure to disconnect the power to unit before disassembling the equipment
for a repair .Internal components and circuit boards are at main potential
when the equipment is connected to the power. This high voltage is extremely
dangerous and may cause death or severe injury if come in contact with it.
Do not touch the discharging refrigerant gas during the repair work. The
discharging refrigerant gas. The refrigerant gas can cause frostbite.
Release the refrigerant gas completely at a well-ventilated place first.
Otherwise, when the pipe is disconnected, refrigerant gas or refrigerating
machine oil discharges and it can cause injury.
When the refrigerant gas leaks during work, perform ventilation. If the
refrigerant gas comes in contact with a fire, poisonous gas generates. A
case of leakage of the refrigerant and the closed room full with gas is
dangerous because a shortage of oxygen occurs. Be sure to perform
ventilation.
When removing the front panel or cabinet, execute short-circuit and discharge
between high voltage capacitor terminals. If discharge is not executed, an
electric shock is caused by high voltage resulting in a death or injury.
Do not use a defective or underrated circuit breaker. Use the correctly
rated breaker and fuse. Otherwise there is a risk of fire or electric shock.
Install the panel and the cover of control box securely. Otherwise there is risk
of fire or electric shock due to dust, water etc.
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