Solving Common Problems
Before contacting the
Problem | Explanation/Solution |
The air conditioner does not operate at all.
Check if power is on and operate the air conditioner again.
Check if the circuit breaker is switched off.
Check if Off Timer is set.
The temperature is not adjusted. | Check if you selected the FAN mode. |
The cool(warm) air does not come out from the air conditioner.
Check if set temperature higher(lower) than current temperature.
Check if you selected the Fan mode. Select the COOL, HEAT, AUTO or DRY mode.
Check if the air filter is blocked by dirt. Clean the air filter regularly.
Check if the there is cover on the outdoor unit or any obstacle. Remove the cover or obstacle.
Check if you installed the air conditioner under direct sunlight.
The window or door may be opened.
Check if you turn on the air conditioner just now. It takes about 3 minutes to cool or heat the room.
Check if the refrigerant pipe is too long.
The fan speed is not adjusted. | In AUTO or DRY mode, the fan speed is selected automatically. | |
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The remote controller does | Check if the battery is discharged. Replace the battery. | |
not operate. | Check if the remote controller sensor is blocked. | |
| Check if the air conditioner is placed near strong light. | |
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The wired remote controller | Check if | is displayed on the wired remote controller. |
does not operate. | Turn off the air conditioner and switch off the circuit breaker. | ||
| Contact the service center. |
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The Timer is not set. | Check if you pressed the | button after selecting time. | |
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The air conditioner does not turn on | Check if you set the wired remote controller for group control. | ||
or off with the wired remote controller. |
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Odor is permeated in the | Check if you use the air conditioner in smoky area or there is a smell. | ||
room during operation. | Ventilate the room or select the FAN mode for 1~2 hours. | ||
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The indoor unit indicator | Press the | button to turn on the air conditioner again. | |
flashes. | Switch the circuit breaker off and switch on it again. | ||
Strange sound is heard from the air conditioner.
The sound is heard when the refrigerant gas flow is changed depending on the use of the air conditioner.
When you press the 
button, noise may be heard from the drain pump inside of the air conditioner.
When you press the 
button, noise may be heard that the air conditioner sense the airflow blade.
Water drops from the outdoor unit connection part.
Water may form due to the difference of the temperature.
