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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.
RC_DB68-06033A-01.indd 27
• 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.
• 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.)
Solution
27
English
5/27/2016 5:15:55 PM
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