7. Test run
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The speed of the outdoor unit fan is controlled in order to control the performance of the unit. Depending on the ambient air, the fan will rotate at a slow speed and will keep
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not a problem.
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1
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Note: If an error is displayed on the remote controller, see the table below.
LCD
Description of malfunction
LCD
Description of malfunction
LCD
Description of malfunction
P1
Intake sensor error
P9
Pipe sensor error (dual-wall pipe)
E0 – E5
Communication error between the
remote controller and the indoor
unit
P2
Pipe sensor error (liquid pipe)
PA
Leakage error (refrigerant system)
P4
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disconnected (CN4F)
PB (Pb)
Indoor unit fan motor error
PL
Refrigerant circuit abnormal
P5
'UDLQRYHUÀRZSURWHFWLRQRSHUDWLRQ
FB
Indoor controller board error
E6 – EF
Communication error between the
indoor unit and the outdoor unit
P6
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operation
8)
(* indicates an
alphanumeric
character
excluding FB.)
Outdoor unit malfunction
Refer to the wiring diagram for the
outdoor unit.
P8
Pipe temperature error
See the table below for the details of the LED display (LED 1, 2, and 3) on the indoor controller board.
LED1 (microcomputer power supply)
Indicates whether control power is supplied. Make sure that this LED is always lit.
LED2 (remote controller power supply)
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.
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Indicates whether the indoor and outdoor units are communicating. Make sure that this LED is always blinking.
Note:
If the unit is operated continuously during a test run, the unit stops after 2 hours.
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OPERATION
INDICATOR
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
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FRGHLQWKHIROORZLQJWDEOHLHQ IRU³8´
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the check code in the following table
n
th
1
st
2
nd
3
rd
1
st
2
nd
Self-check
starts
(Start signal
received)
Beeper sounds
[Output pattern B]
OPERATION
INDICATOR
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
1XPEHURIEOLQNVEHHSVLQSDWWHUQLQGLFDWHVWKHFKHFN
code in the following table (i.e., n=5 for “P5”)
1XPEHURIEOLQNVEHHSVLQSDWWHUQLQGLFDWHV
the check code in the following table
n
th
1
st
2
nd
3
rd
1
st
2
nd
Self-check
starts
(Start signal
received)
Beeper sounds
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[Output pattern A]
