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6. Troubleshooting
Before you call out a repair man, check the following table to see whether there is
a simple solution to your problem.
●
Unit does not cool very well.
• Clean the filter. (Dust and debris that collects in the filter will decrease air-
flow.)
• Check the temperature setting and adjust it if necessary.
• Increase the space surrounding the outdoor unit.
Is the air intake or air outlet blocked?
• Is a window or door open?
●
There is a “swishing” noise that occurs from the unit when water flows.
• This sound is made when refrigerant inside of the unit is flowing or refilling.
●
A ticking noise is heard from inside of the unit.
• This sound is made when internal parts of the unit expand or contract when
the temperature changes.
●
An odor is detected in the room.
• This is caused when the unit expels odors that have been absorbed from the
walls, carpets, furniture or clothing.
●
A white mist is expelled from the indoor unit.
• This may occur just after the unit is turned on when a high level of humidity is
present in the room.
●
Water or moisture is expelled from the outdoor unit.
• This occurs to expel water or moisture that may have collected in the pipes
or around piping fixtures.
• This occurs to dispel water from the heat exchanger.
●
The indicators of the remote controller do not light up when operated.
• Turn on the power switch. “
” will be displayed.
●
indicator is displayed in the remote controller.
• The start and stop or operation mode or set temperature functions of the
remote controller are not available when the
indicator is lit.
●
The start and stop functions are not available just after restarting the
unit.
• Wait about three minutes (operation has stopped to prevent damage to the
air conditioner).
●
Unit does not start immediately.
• Wait until the unit restarts automatically. The compressor may hesitate re-
suming because a three-minute resume prevention circuit is incorporated in
the outdoor unit for protection of the compressor.
●
The unit started even though the start/stop button was not pushed.
• Is the timer on?
Press the start/stop button to stop the unit.
• Was a distant command sent from the remote controller?
Find out if the remote controller was used.
• Is the
indicator lit?
Find out if the remote controller was used.
• Is the automatic (cooling/heating) mode selected?
Press the start/stop button to stop the unit.
●
The unit stopped even though the start/stop button was not pushed.
• Is the timer on?
Press the start/stop button to restart the unit.
• Was a distant command sent from the remote controller?
Find out if the remote controller was used.
• Is the
indicator lit?
Find out if the remote controller was used.
●
“PLEASE WAIT” is displayed in the remote controller.
• An automatic startup test is being performed (will last for about two minutes).
●
An error code is displayed in the remote controller.
• A self-diagnostic function is being performed to preserve the air conditioner.
* Do not attempt to make repairs yourself. Turn the main switch off and
contact the dealer from whom you bought the air conditioner. Provide him
or her with the name of the unit and the information displayed in the re-
mote controller.
●
The fan in the indoor unit does not operate.
• Check the over-current relay on the fan motor to determine whether it has
been tripped.
If the over-current relay has been tripped, reset it after eliminating the cause
of the problem (e.g. motor lock).
To reset the over-current relay, open the control box and press the green
claw on bottom-right of the relay until a click is heard. Release the claw and
check that it returns to its original position.
Note that if it is pressed too hard it will not return to its original position.
If none of the above apply, turn the main switch off and contact the dealer from whom you bought the air-conditioner, telling him the model name and the nature of the
problem. Do not try to fix the unit yourself.
In any of the following cases, turn off the main power switch and contact your local dealer for service:
•
The operation lamp (on the main unit) flashes.
•
The switches do not work properly.
•
The circuit breaker trips frequently (or the fuse blows frequently).
•
Water has accidentally been splashed into the unit.
•
Water leaks from the unit.
•
Something is accidentally dropped into the air-conditioner.
•
An unusual noise is heard during operation.
The following do not indicate any malfunction:
Odours: smells such as tobacco or cosmetic odours may persist after they have been sucked into the unit.
Sound of liquid flowing inside indoor unit: this can occur during or after operation and is simply the sound of refrigerant being circulated inside the unit.
Ticking sound coming from indoor unit: this can occur when cooling has just begun or has just stopped. It is caused by the indoor unit shrinking or expanding slightly due to
the change in temperature.
NOTE: The refrigerant charged in the air conditioner is safe. Refrigerant normally does not leak, however, if refrigerant gas leaks indoors, and comes into contact
with the fire of a fan heater, space heater, stove, etc., harmful substances will be generated.
Be sure to ask the service representative whether there is refrigerant leakage or not when repairs are carried out.
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