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EN
TH
11
Troubleshooting
Check the points described below before requesting repair.
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.
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It is not a malfunction.
Outdoor unit
• A noise is heard when the power is turned on. • The outdoor unit is preparing for running.
Indoor unit
• Sometimes a swishing is heard. • 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.
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etc. expands and contracts slightly due to temperature
change.
• Discharged air smells unusual. • Various smells from the walls, carpet, clothes,
cigarette, cosmetics, etc. adhere to the air conditioner.
• The fan continues running even after the unit
operation is stopped.
• The fan keeps running to self clean operation the heat
exchanger during drying.
Operation does
not start even if
the switch is
turned on.
• The air conditioner is not working or a power failure
has occurred.
• Push START/STOP (ON/OFF) button on the remote
controller again.
• The power switch is not turned on. • Turn on the power switch if it is off.
• The air conditioner is in the ON timer operation. • Cancel the timer operation.
• The batteries of the remote controller have been
exhausted.
• Replace the batteries.
• The LEDs on the signal receiving unit are not in
normal state or operati
on mode is not correct.
• Change the operation mode.
Check again.
The room does not cool down.
• 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?
Case with wireless remote controller
<Representative examples>
LEDs on the signal receiving unit : OFF : Blinking (at intervals of 0.5 seconds)
LED colour : Green : Green : Orange
Check those items. If any of those problems remains, stop the operation and turn off the power. Contact the dealer whom you
purchased the air conditioner from. Convey the air conditioner model name, and details of the error (including LED flashing
state). Do not repair any unit by yourself as it is dangerous.
Contact the dealer from whom you purchased the air conditioner.
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These LEDs do not light or
blink even if the remote
controller is operated.
-Power is not turned on.
-Incorrect connection between signal receiving unit and indoor unit
The LEDs flash.
Communication error between signal receiving unit and indoor unit or address setup
error when the wired remote controller is used.
Communication error between indoor unit and outdoor unit.
The protective device of the indoor unit is activated.
The protective device of the outdoor unit is activated.
Temperature sensor of indoor unit is error.
The compressor of the outdoor unit is protected.
The air conditioner is performing a test run.
40-EN39-EN
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