TROUBLESHOOTING 
If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center.
Trouble |
| Possible Cause |
| Remedy |
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Air conditioner does | 1. | Power failure. | 1. Restore power. | |
not run at all. | 2. | Leakage circuit | 2. | Contact service |
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| breaker tripped. |
| center. |
| 3. | Line voltage is too | 3. | Consult your |
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| low. |
| electrician or |
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| dealer. |
| 4. | Batteries in remote | 4. | Replace batteries. |
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| control unit have |
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| run down. |
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OPERATION lamp | Trouble in system. | Contact service | ||
blinks and air |
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| center. | |
conditioner does not |
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operate. |
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Compressor runs but | Obstruction in front of | Remove obstruction. | ||
soon stops. | condenser coil. |
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Poor cooling | 1. | Dirty or clogged air | 1. | Clean air filter to |
performance. |
| filter. |
| improve airflow. |
| 2. | Heat source or | 2. | Eliminate heat |
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| many people in |
| source if possible. |
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| room. |
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| 3. | Doors and/or | 3. | Shut them to keep |
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| windows are open. |
| the heat out. |
| 4. | Obstacle near air | 4. | Remove it to |
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| intake or air |
| ensure good |
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| discharge port. |
| airflow. |
| 5. | Thermostat is set | 5. | Set the |
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| too high for |
| temperature lower. |
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| cooling. |
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Clicking sound is | In cooling operation, | This is normal, and | ||
heard from the air | any plastic parts may | the sound will soon | ||
conditioner. | shrink due to a | disappear. | ||
| sudden temperature |
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| change. In this event, |
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| a clicking sound may |
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| occur. |
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OPERATION lamp | The use of cellular | 1. | Turn off the power | |
lights but outdoor unit | phones near the air |
| then restart the air | |
will not run. | conditioner may |
| conditioner after a | |
| cause disturbance to |
| while. | |
| its normal operation. | 2. | Consult your | |
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| dealer. |
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OPERATING RANGE 
The air conditioner is operable within the temperature ranges as listed below:
| Temperature | Indoor air | Outdoor air | |
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| temperature | temperature | |
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COOLING | Max. | 32 | °C DB / | 43 °C DB |
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| 23 | °C WB |
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| Min. | 19 | °C DB / | 19 °C DB |
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| 14 | °C WB |
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15 | |
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