44
ENGLISH
MAINTENANCE AND SERVICE
Call the service immediately in the following situations
- Anything abnormal such as burning smell, loud noise etc. happen. Stop the unit and turn the breaker
off. Never try to repair by yourself or restart the system in such cases.
- Main power cord is too hot or damaged.
- Error code is generated by self diagnosis.
- Water leaks from indoor unit even if the humidity is low.
- Any switch, breaker (safety, earth) or fuse fails to work properly
User must carry routine checkup & cleaning to avoid unit’s poor performance.
In case of special situation, the job must be carried out by service person only.
Case
Explanation
The air conditioner does
not operate.
• Have you made a mistake in timer operation?
• Has the fuse blown or has the circuit breaker been tripped?
The room has a peculiar
odor.
• Check that this is not a damp smell exuded by the walls, carpet, furniture or
cloth items in the room.
It seems that condensation
is leaking from the air con-
ditioner.
• Condensation occurs when the airflow from the air conditioner cools the
warm room air.
Air conditioner does not op-
erate for about 3 minutes
when restart.
• This is the protector of the mechanism.
• Wait about three minutes and operation will begin.
Does not cool or heat effec-
tively.
• 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?
The air conditioner opera-
tion is noisy.
• 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.
Crack sound is heard.
• This sound is generated by the expansion/contraction of the inlet grille, etc.
due to changes of temperature.
Filter sign lamp (LED) is
ON.
• Cleaning the filter, press the Timer button and
◀
button of wired remote
controller at the same time for 3 seconds.
Remote control display is
faint, or no display at all.
• Has the circuit breaker been tripped?
• Are the batteries inserted in the opposite (+) and (-) directions?
The error code is occurred
after lightning struck
• This product has been applied to the over current protection circuit.
Error can occur, but it is normal behavior.
After few minutes, It will operate normally.
Troubleshooting Tips! Save time and money!
Check the following points before requesting repairs or service.... If the malfunction persist, please
contact your dealer.
Summary of Contents for UM30R
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