Mitsubishi Electric Mr.SLIM PC-2GAKD Technical & Service Manual page 28

Wired remote controller
1 Check code
P1
Intake sensor error
P2 Pipe (TH2) sensor error
P4 Drain sensor error
P5 Drain pump error
Forced compressor stop
PA
P6 Freezing/ Overheating protection operation
P8 Pipe temperature error / Outdoor unit error
E4, E5 Remote controller signal receiving error
– –
– –
Fb Indoor unit control system error (memory error, etc.)
Remote controller transmission error
E0, E3
E1, E2 Remote controller control board error
• On wired remote controller
1Check code displayed in the LCD.
• If the unit cannot be operated properly after the test run, refer to the following table to find out the cause.
Symptom
Wired remote controller
PLEASE WAIT
PLEASE WAIT → Error code
No messages appear even
when operation switch is
turned ON (operation lamp
does not light up).
On the wireless remote controller with condition above, following phenomena take place.
• No signals from the remote controller can be received.
• Operation lamp is blinking.
• The buzzer makes a short ping sound.
Note:
Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED1, 2) provided on the indoor controller, refer to the following table.
LED1 (power for microcomputer)
LED2 (power for wired remote controller)
Symptom
•For about 2 minutes after power-on,op-
For about 2
minutes after
eration of the remote controller is not possible
power-on
due to system start-up. (Correct operation)
•Connector for the outdoor unit's protection
device is not connected.
•Reverse or open phase wiring for the outdoor
Subsequent to
unit's power terminal block
about 2 minutes
after power-on
•Incorrect wiring between indoor and outdoor
units
•Remote controller wire short
Indicates whether control power is supplied. Make sure that this LED is
always lit.
Indicates whether power is supplied to the wired remote controller.
This LED lights only in the case of the main indoor unit.
Remark
Cause
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