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8
Troubleshooting
Check the points described below before requesting repair.
Symptom
• White, misty, cold air or water comes out • The fan of the outdoor unit is automatically
• Sometimes the noise of air leaking is
Outdoor unit
heard.
• A noise is heard when the power is
turned on.
• Sometimes a swishing is heard.
Indoor unit
• A clacking sound is heard.
• Discharged air smells unusual.
• The unit does not run.
The room does not cool down.
If there is something unusual even after checking the above, stop running the unit, turn off the circuit breaker, and
inform the dealer where you purchased the product of the product number and symptom. Do not attempt to repair
the unit by yourself as doing so is dangerous. If the check indicator (e.g.
controller LCD, inform the dealer of its content as well.
If any of the following occur, stop running the unit immediately, turn off the circuit breaker, and contact the dealer
where you purchased the product.
• The switch does not work properly.
• The circuit breaker often blows out.
• You unintentionally put a foreign object or water inside.
• The unit cannot be run even after the cause of the protective device activation is removed.
• Other unusual conditions are found.
23-EN
Cause
stopped and defrosting is performed.
• The solenoid valve works when defrosting starts
or stops.
• The outdoor unit is preparing for running.
• When the unit starts running, during operation,
or immediately after the unit stops running, a
sound such as water flowing may be heard, or
the operation sound may become louder for a
couple of minutes immediately after the unit starts
running. This is the sound of the refrigerant flowing
or the dehumidifier draining.
• This is a sound generated when the heat
exchanger or other part expands and contracts
slightly due to temperature change.
• Various smells from the walls, carpet, clothes,
cigarette, cosmetics or other things adhere to the
air conditioner.
• Has a blackout occurred?
• Has the circuit breaker blown?
• Has the protective device been activated?
(The operation indicator and
on the remote
controller are blinking.)
• Is the air intake or discharge of the outdoor unit
clogged?
• Is a door or window open?
• Is the air filter clogged with dust?
• Is the setup temperature appropriate?
,
,
) is displayed on the remote
■
Confi rmation and check
When a problem occurred in the air conditioner, check
code and indoor UNIT No. appear on the display part
of the remote controller.
The check code is only displayed during the operation.
If the display disappears, operate the air conditioner
according to the following "Confirmation of check code
log" for confirmation.
check code
Indoor UNIT No. in which
a problem occurred
■
Confi rmation of check code log
When a problem occurred on the air conditioner, the
check code log can be confirmed with the following
procedure. (The check code log is stored in memory
up to 4 check codes.) The log can be confirmed from
both operating status and stop status.
2
3
1
Push
and
buttons simultaneously for
4 seconds or more, the following display
appears.
If
is displayed, the mode enters in the check
code log mode.
• [01: Order of check code log] is displayed in
CODE No.
• [Check code] is displayed in CHECK.
• [Indoor unit address in which a problem
occurred] is displayed in UNIT No.
– 12 –
2
Every pushing of
button used to set
temperature, the check code log stored in
memory is displayed in order.
The numbers in CODE No. indicate CODE No.
[01] (latest) → [04] (oldest).
REQUIREMENT
Do not push
button because all the check code log
of the indoor unit will be deleted.
3
After confirmation, push
the usual display.
1
button to return to
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