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 not run at all. | 1. | Power failure. | 1. | Restore power. |
| 2. | Leakage circuit breaker tripped. | 2. | Contact service center. |
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| 3. | Line voltage is too low. | 3. | Consult your electrician or dealer. |
| 4. | Batteries in remote control unit have | 4. | Replace batteries. |
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| run down. |
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OPERATION lamp blinks and air | Trouble in system. | Contact service center. | ||
conditioner does not operate. |
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Compressor runs but soon stops. | Obstruction in front of condenser coil. | Remove obstruction. | ||
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Poor cooling performance. | 1. | Dirty or clogged air filter. | 1. | Clean air filter to improve airflow. |
| 2. | Heat source or many people in room. | 2. | Eliminate heat source if possible. |
| 3. | Doors and/or windows are open. | 3. | Shut them to keep the heat out. |
| 4. | Obstacle near air intake or air | 4. | Remove it to ensure good airflow. |
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| discharge port. |
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| 5. | Thermostat is set too high for cooling. | 5. | Set the temperature lower. |
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Clicking sound is heard from the air | In cooling operation, any plastic parts | This is normal, and the sound will soon | ||
conditioner. | may shrink due to a sudden | disappear. | ||
| temperature change. In this event, a |
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| clicking sound may occur. |
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OPERATION lamp lights but outdoor | 1. | The use of cellular phones near the | 1. | Turn off the power then restart the |
unit will not run. |
| air conditioner may cause |
| air conditioner after a while. |
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| disturbance to its normal operation. |
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| 2. | Consult your dealer. |
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Operating Range
The air conditioner is operable within the temperature ranges as listed below:
For Cooling Only Models : CM1972, CM2472, CM3172
| Temperature | Indoor air temperature | Outdoor air temperature |
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COOLING | Max. | 95 °F DB / 71 °F WB | 115 °F DB |
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| Min. | 67 °F DB / 57 °F WB | 67 °F DB |
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For Low Ambient Cooling Models : CLM1972, CLM2472, CLM3172 |
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| Temperature | Indoor air temperature | Outdoor air temperature |
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COOLING | Max. | 95 °F DB / 71 °F WB | 115 °F DB |
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| Min. | 67 °F DB / 57 °F WB | 0 °F DB |
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