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Cleaning and Maintaining
Troubleshooting
Refer to the following chart if the air conditioner operates abnormally. This may save time and
unnecessary expense.
Problem
The air conditioner
does not operate
immediately after it
has been restarted.
The air conditioner
does not operate
at all.
The temperature
does not change.
Warm air does not
come out of the air
conditioner.
The fan speed does
not change.
The wireless
remote control
does not operate.
16
English
• Because of the protective mechanism, the appliance does not start
operating immediately to keep the unit from overloading. The air
conditioner will start in 3 minutes.
• Check if the power plug is properly connected.
• Check whether the auxiliary power switch (MCCB, ELB) is turned on.
• If the auxiliary power switch (MCCB, ELB) is turned off, the air
conditioner does not work although you press the
• When you clean the air conditioner or do not use it for an extended
period of time, turn off the auxiliary power switch (MCCB, ELB).
• After the air conditioner is not used for an extended period of time, be
sure to turn on the auxiliary power switch (MCCB, ELB) 6 hours before
starting operation.
NOTE
• The auxiliary power switch (MCCB, ELB) is sold separately.
• Make sure that auxiliary power switch (MCCB, ELB) is installed in
the distribution box inside the building.
• If the air conditioner is turned off by the Timed off function, turn on the
air conditioner again by pressing the
• Check whether the Fan mode is running. In the Fan mode, the air
conditioner controls the set temperature automatically, and you cannot
change the set temperature.
• Check whether the outdoor unit is designed for cooling only. In this case,
warm air does not come out although you select the Heat mode.
• Check whether the remote control is designed only for cooling only. Use
a remote control that supports both cooling and heating.
• Check whether the Auto or Dry mode is running. In these modes, the
air conditioner controls the fan speed automatically, and you cannot
change the fan speed.
• Check whether the batteries are discharged. Replace the batteries with
new ones.
• Make sure that nothing is blocking the remote control sensor.
• Check whether any strong lighting sources are near the air conditioner.
Strong light which comes from fluorescent bulbs or neon signs may
interfere with the remote control.
Solution
(Power) button.
(Power) button.
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