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9
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 stopped
• 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.
• A clacking sound is heard.
Indoor unit
• Discharged air smells unusual.
• The fan continues running even after the
unit operation is stopped.
• The unit does not run.
The room does not cool down or warm up.
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.
19-EN
Cause
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.
• The fan keeps running to self clean operation the heat
exchanger during drying.
• 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 air volume set to "LOW"? Or is the operation
mode set to "FAN"?
• Is the setup temperature appropriate?
,
,
) is displayed on the remote
Confirmation and check
When an error occurred in the air conditioner, an error
code and indoor UNIT No. appear on the display part
of the remote controller.
The error code is only displayed during the operation.
If the display disappears, operate the air conditioner
according to the following "Confirmation of error log" for
confirmation.
Error code
Indoor UNIT No. in
which an error occurred
Confirmation of error log
When an error occurred on the air conditioner, the error
log can be confirmed with the following procedure.
(The error log is stored in memory up to 4 errors.)
The log can be confirmed from both operating status
and stop status.
2
3
1
1
Push
and
buttons simultaneously for
4 seconds or more, the following display
appears.
If
is displayed, the mode enters in the
error log mode.
• [01: Order of error log] is displayed in CODE No.
• [Error code] is displayed in CHECK.
• [Indoor unit address in which an error occurred]
is displayed in UNIT No.
– 10 –
2
Every pushing of
button used to set
temperature, the error 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 error log of the
indoor unit will be deleted.
3
After confirmation, push
button to return
to the usual display.
EN
20-EN
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