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Troubleshooting
If the air conditioner operates abnormally, refer to the following chart to save time and unnecessary
expenses.
Problem
The air conditioner does
not work at all.
I cannot change the
temperature.
Cool or warm air does
not come out of the air
conditioner.
I cannot change the air
flow direction.
I cannot change the fan
speed.
• Check the power status, then operate the air conditioner again.
• Switch on the circuit breaker, plug in the power cord, then operate the air
conditioner again.
• Make sure that the isolator is turned on.
• Check whether the Timed off function is running. Operate the air
conditioner again by pressing the Power button.
• If PM 2.5 filter and Air filter is very dirty Refer to the following and clean
PM 2.5 filter and Air filter.
• Check whether the Fan or Fast mode is running. In these modes, the air
conditioner controls the set temperature automatically, and you 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.
• Check whether the air conditioner is running the defrost function.
When ice forms in winter or the outdoor temperature is too low, the air
conditioner runs the defrost function automatically. While this 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.
• Check whether the good'sleep function is running. While this function is
running, you cannot control the air flow direction. (But you can control
the air flow direction if this function is running in the Heat mode.)
• When the Auto, Dry, or Fast mode is running or the good'sleep function
is running in the Cool mode, the air conditioner controls the fan speed
automatically and you cannot change the fan speed.
Solution
English
33
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