Troubleshooting Tips; Before You Call For Service - LG LT-D4880RJ Owner's Manual

Troubleshooting
Tips
Troubleshooting Tips! Save time and money!
Check the following points before requesting repairs or service.... If the malfunction persist, please contact your
dealer.
Case
The air conditioner does not
operate.
The room has a peculiar odor.
It seems that condensation is
leaking from the air conditioner.
Air conditioner does not operate
for about 3 minutes when restart.
Does not cool or heat effectively.
The air conditioner operation is
noisy.
Crack sound is heard.
Filter sign lamp (LED) is ON.
Remote control display is faint, or
no display at all.

Before you call for service...

• Have you made a mistake in timer operation?
• Has the fuse blown or has the circuit breaker
been tripped?
• Check that this is not a damp smell exuded by
the walls, carpet, furniture or cloth items in the
room.
• Condensation occurs when the airflow from the
air conditioner cools the warm room air.
• This is the protector of the mechanism.
• Wait about three minutes and operation will
begin.
• Is the air filter dirty? See air filter cleaning
instructions.
• The room may have been very hot when the
room air conditioner was first turned on. Allow
time for it to cool down.
• Has the setting temperature been set incorrectly?
• Are the indoor unit's air inlet or outlet vents
obstructed?
• For a noise that sounds like water flowing.
-This is the sound of freon flowing inside the air
conditioner unit.
• For a noise that sounds like the compressed air
releasing into atmosphere.
-This is the sound of the dehumidifying water
being processed inside the air conditioning unit.
• This sound is generated by the
expansion/contraction of the inlet grille, etc. due
to changes of temperature.
• Cleaning the filter, press the Timer button and ◀
button of wired remote controller at the same time
for 3 sec.
• Has the circuit breaker been tripped?
• Are the batteries inserted in the opposite (+) and
(-) directions?
Explanation
24
See page
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12, 14
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