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• Refer to the following tables for details on the check codes.
[Output pattern A]
Beeper sounds
Beep
OPERATION
INDICATOR
lamp blink
Off
pattern
Approx. 2.5 s
Self-check
starts
(Start signal
Number of blinks/beeps in pattern indicates the check
received)
code in the following table (i.e., n=5 for "P5")
[Output pattern B]
Beeper sounds
B
e
e
p
OPERATION
INDICATOR
lamp blink
Off
pattern
Approx. 2.5 s
Self-check
starts
(Start signal
received)
[Output pattern A] Errors detected by indoor unit
IR wireless remote controller Wired remote controller
Beeper sounds/OPERATION
INDICATOR lamp blinks
(Number of times)
1
2
3
4
5
6
7
8
9
10
11
12
14
–
–
[Output pattern B]
Errors detected by unit other than indoor unit (outdoor unit, etc.)
IR wireless remote controller Wired remote controller
Beeper sounds/OPERATION
INDICATOR lamp blinks
(Number of times)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Notes:
1 . If the beeper does not sound again after the initial 2 beeps to confirm the self-check start signal was received and
the OPERATION INDICATOR lamp does not come on, there are no error records.
2 . If the beeper sounds 3 times continuously "beep, beep, beep (0.4 + 0.4 + 0.4 seconds)" after the initial 2 beeps to confirm
the self-check start signal was received, the specified refrigerant address is incorrect.
OCH580
Beep Beep Beep
Beep
1
2
3
n
st
nd
rd
th
On
On
On
On
0.5 s
0.5 s
0.5 s
0.5 s
B
e
e
p
B
e
e
p
1
st
2
nd
On
On
On
Approx. 3 s
0.5 s
0.5 s
Number of blinks/beeps in pattern indicates the check
code in the following table (i.e., n=5 for "U2")
Check code
P1
Intake sensor error
P2
Pipe (TH2) sensor error
P9
Pipe (TH5) sensor error
E6,E7
Indoor/outdoor unit communication error
P4
Float switch connector (CN4F) open
P5
Drain pump error
Forced compressor stop(due to water leakage abnormality)
PA
P6
Freezing/Overheating protection operation
EE
Communication error between indoor and outdoor units
P8
Pipe temperature error
E4, E5
Remote controller signal receiving error
–
–
–
–
Fb
Indoor unit control system error (memory error, etc.)
PL
Abnormality of refrigerant circuit
Remote controller transmission error
E0, E3
E1, E2
Remote controller control board error
Check code
Indoor/outdoor unit communication error
E9
(Transmitting error) (Outdoor unit)
Compressor overcurrent interruption
UP
Open/short of outdoor unit thermistors
U3,U4
Compressor overcurrent interruption (When compressor locked)
UF
Abnormal high discharging temperature/49C operated/
U2
insufficient refrigerant
Abnormal high pressure (63H operated)/Overheating
U1,Ud
protection operation
Abnormal temperature of heatsink
U5
Outdoor unit fan protection stop
U8
Compressor overcurrent interruption/Abnormal of power module
U6
Abnormality of superheat due to low discharge temperature
U7
Abnormality such as overvoltage or voltage shortage and
U9,UH
abnormal synchronous signal to main circuit/Current sensor error
–
–
–
–
Others
Other errors (Refer to the technical manual for the outdoor unit.)
Beep Beep
1
2
· · · Repeated
st
nd
Off
On
On
Approx. 2.5 s
0.5 s
0.5 s
Number of blinks/beeps in pattern indicates
the check code in the following table
B
e
e
p
B
e
e
p
3
rd
n
th
On
On
Off
0.5 s
0.5 s
Approx. 2.5 s
S
y
m
p
o t
m
S
y
m
p
o t
m
17
Beep
Beep
1
st
2
nd
· · · Repeated
On
On
On
Approx. 3 s
0.5 s
0.5 s
Number of blinks/beeps in pattern indicates
the check code in the following table
R
R
For details, check
the LED display
of the outdoor
controller board.
As for outdoor
unit, refer to
outdoor unit's
service manual.
e
m
a
k r
e
m
a
k r
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