Troubleshooting
If the air conditioner operates abnormally, refer to the following chart to save time and unnecessary expenses.
Problem | Solution | |
|
| |
| • Check the power status, then operate the air conditioner again. | |
The air conditioner | • Switch on the circuit breaker, plug in the power cord, then operate | |
does not work at | the air conditioner again. | |
• Make sure that the isolator is turned on. | ||
all. | ||
• Check whether the Timed off function is running. Operate the air | ||
| ||
| conditioner again by pressing the Power button. | |
|
| |
I cannot change | • Check whether the Fan or Fast mode is running. In these modes, the | |
air conditioner controls the set temperature automatically, and you | ||
the temperature. | ||
cannot change the set temperature. | ||
| ||
|
| |
| • Check whether the set temperature is higher in the Cool mode | |
| or lower in the Heat mode than the current temperature. Press | |
| the Temperature button on the remote control to change the set | |
| temperature. | |
| • Check whether the air filter is blocked with dirt. If the air filter is | |
| blocked, the cooling and heating performance may decrease. Remove | |
| dirt regularly. | |
| • Check whether the outdoor unit is covered or installed near | |
| obstacles. Remove the coverings and obstacles. | |
Cool or warm air | • Check whether the air conditioner is running the defrost function. | |
does not come | When ice forms in winter or the outdoor temperature is too low, the | |
out of the air | air conditioner runs the defrost function automatically. While this | |
conditioner. | function is running, the indoor fan stops and warm air does not come | |
| out. | |
| • Check whether doors or windows are open. This may cause poor | |
| cooling or heating performance. Close the doors and windows. | |
| • Check whether the air conditioner is turned on immediately after the | |
| cooling or heating operation stops. In this case, only the fan runs to | |
| protect the outdoor unit compressor. | |
| • Check whether the pipe length is too long. When the pipe length | |
| exceeds the maximum pipe length, the cooling and heating | |
| performance may decrease. | |
|
| |
I cannot change | • Check whether the good'sleep function is running. While this | |
function is running, you cannot control the air flow direction. (But | ||
the air flow | ||
you can control the air flow direction if this function is running in | ||
direction. | ||
the Heat mode.) | ||
| ||
|
|
Cleaning and Maintenance
English 27
