Mitsubishi Electric Mr.Slim SLZ-M15, Installation Manual

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Note: If an error is displayed on the remote controller, see the table below.
[Output pattern A] Errors detected by indoor unit
controller
Symptom Remark
INDICATOR lamp blinks (Num-
Check code
1 P1 Intake sensor error
2
P2
P9
3 E6, E7
4 P4
5
P5 Drain pump error
PA Forced compressor error
6 P6
7 EE Communication error between indoor and outdoor units
8 P8 Pipe temperature error
9 E4 Remote controller signal receiving error
10 — —
11 Indoor unit fan motor error
12
14
PL Refrigerant circuit abnormal
No sound E0, E3 Remote controller transmission error
No sound E1, E2 Remote controller control board error
No sound – – – – No corresponding
controller
Symptom Remark
INDICATOR lamp blinks (Num- Check code
1 E9
For details, check the LED
display of the outdoor controller
board.
2 UP Compressor overcurrent interruption
3 U3, U4
14 PL or Others
Abnormality of refrigerant circuit or other errors
there are no error records.
refrigerant address is incorrect.
Blink of operation lamp
Check code displayed in the LCD.
OPERATION IN-
DICATOR lamp
blinking pattern
Beep Beep Beep Beep Beep Beep Beep
Off
Approx. 2.5 sec.
On
Approx. 3 sec.
On
0.5 sec.
On
0.5 sec.
On
0.5 sec.
On
0.5 sec.
Off
Approx. 2.5 sec.
On
Approx. 3 sec.
On
0.5 sec.
On
0.5 sec.
· · · Repeated
check code in the following table
n
th
1
st
2
nd
3
rd
1
st
2
nd
Self-check
starts
(Start signal
Beeper sounds
[Output pattern B]
OPERATION IN-
DICATOR lamp
blinking pattern
Beep Beep Beep Beep Beep Beep Beep
Off
Approx. 2.5 sec.
On
0.5 sec.
On
0.5 sec.
On
0.5 sec.
On
0.5 sec.
Off
Approx. 2.5 sec.
On
0.5 sec.
On
0.5 sec.
· · · Repeated
check code in the following table
n
th
1
st
2
nd
3
rd
1
st
2
nd
Self-check
starts
(Start signal
Beeper sounds
[Output pattern A]
Indicates whether control power is supplied. Make sure that this LED is always lit.
Indicates whether power is supplied to the wired remote controller. The LED is lit only for the indoor unit that is connected
to the outdoor unit that has an address of 0.
Indicates whether the indoor and outdoor units are communicating. Make sure that this LED is always blinking.