29
English
Cleaning and Maint
enanc
e
Problem
Solution
The air conditioner
does not work at
all.
•
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.
I cannot change
the temperature.
•
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.
Cool air does not
come out of the air
conditioner.
•
Check whether the set temperature is higher in the Cool 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 performance may decrease. Remove dirt
regularly.
•
Check whether the outdoor unit is covered or installed near
obstacles. Remove the coverings and obstacles.
•
Check whether doors or windows are open. This may cause poor
cooling performance. Close the doors and windows.
•
Check whether the air conditioner is turned on immediately after the
cooling 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 performance may
decrease.
I cannot change
the air flow
direction.
•
Check whether the good'sleep function is running. While this
function is running, you cannot control the air flow direction.
I cannot change
the fan speed.
•
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.
The remote control
does not work.
•
Replace the batteries in the remote control with new ones.
•
Make sure that nothing is blocking the remote control sensor.
•
Check whether there are strong lighting apparatus near the air
conditioner. Strong light which comes from fluorescent bulbs or
neon signs may interrupt the electric waves.
If the air conditioner operates abnormally, refer to the following chart to save time and
unnecessary expenses.
Troubleshooting
DB68-06039A-00.indd 29
5/25/2016 7:08:43 PM
