Mitsubishi Electric Mr.SLIM PKA-A30KA6 Operation Manual page 7

7. Troubleshooting
Having trouble?
" " appears in the wired remote controller display. (*1)
When restarting the air conditioner soon after stopping it, it does not
operate even though the ON/OFF button is pressed.
Air conditioner operates without the ON/OFF button being pressed. (*1)
Air conditioner stops without the ON/OFF button being pressed. (*1)
Wired remote controller timer operation cannot be set. (*1)
"PLEASE WAIT" appears in the wired remote controller display. (*1)
An error code appears in the remote controller display.
Draining water or motor rotation sound is heard.
When dry mode starts, the set temperature changes.
Noise is louder than specifications.
Nothing appears in the IR wireless remote controller display, the display
is faint, or signals are not received by the indoor unit unless the IR
wireless remote controller is close. (*2)
The operation lamp near the receiver for the IR wireless remote
controller on the indoor unit is blinking. (*2)
*1: Only for wired remote controller.
*2: Only for IR wireless remote controller.
Here is the solution. (Unit is operating normally.)
During central control, " " appears in the wired remote controller
display and air conditioner operation cannot be started or stopped
using the wired remote controller.
Wait approximately 3 minutes.
(Operation has stopped to protect the air conditioner.)
Is the on timer set?
Press the ON/OFF button to stop operation.
Is the air conditioner connected to a central wired remote controller?
Consult the concerned people who control the air conditioner.
Does " " appear in the wired remote controller display?
Consult the concerned people who control the air conditioner.
Has the auto recovery feature from power failures been set?
Press the ON/OFF button to stop operation.
Is the off timer set?
Press the ON/OFF button to restart operation.
Is the air conditioner connected to a central wired remote controller?
Consult the concerned people who control the air conditioner.
Does " " appear in the wired remote controller display?
Consult the concerned people who control the air conditioner.
Are timer settings invalid?
If the timer can be set, or
controller display.
The initial settings are being performed. Wait approximately 3
minutes.
The protection devices have operated to protect the air conditioner.
Do not attempt to repair this equipment by yourself.
Turn off the power switch immediately and consult your dealer. Be
sure to provide the dealer with the model name and information that
appeared in the remote controller display.
When cooling operation stops, the drain pump operates and then
stops. Wait approximately 3 minutes.
When Dry mode starts, the set temperature automatically changes to
the optimum initial set temperature.
The indoor operation sound level is affected by the acoustics of the
particular room as shown in the following table and will be higher than
the noise specification, which was measured in an echo-free room.
High sound-
absorbing rooms
Location Broadcasting
examples studio, music
room, etc.
Noise levels 3 to 7 dB
The batteries are low.
Replace the batteries and press the Reset button.
If nothing appears even after the batteries are replaced, make sure
that the batteries are installed in the correct directions (+, –).
The self diagnosis function has operated to protect the air conditioner.
Do not attempt to repair this equipment by yourself.
Turn off the power switch immediately and consult your dealer. Be
sure to provide the dealer with the model name.
appears in the wired remote
Normal rooms Low sound-
absorbing rooms
Reception room, Office, hotel
hotel lobby, etc. room
6 to 10 dB 9 to 13 dB
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