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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 sec.
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
Beep
OPERATION
INDICATOR
lamp blink
Off
pattern
Approx. 2.5 sec.
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
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 sec.)" after the initial 2 beeps to confirm
the self-check start signal was received, the specified refrigerant address is incorrect.
OCH567
Beep Beep Beep
Beep
st
nd
rd
1
2
3
n
th
On
On
On
On
0.5 sec.
0.5 sec.
0.5 sec.
0.5 sec.
Beep Beep Beep
st
nd
1
2
On
On
On
Approx. 3 sec.
0.5 sec.
0.5 sec.
0.5 sec.
Number of blinks/beeps in pattern indicates the check
code in the following table (i.e., n=5 for "U2")
1 Check code
Intake sensor error
P1
Pipe (TH2) sensor error
P2
P9
Pipe (TH5) sensor error
E6,E7
Indoor/outdoor unit communication error
Drain sensor error / Float switch connector open
P4
P5
Drain pump error
Forced compressor stop(due to water leakage abnormality)
PA
Freezing/ Overheating protection operation
P6
Communication error between indoor and outdoor units
EE
P8
Pipe temperature error
Remote controller signal receiving error
E4, E5
–
–
–
–
Indoor unit control system error (memory error, etc.)
Fb
PL
Abnormal refrigerant circuit
E0, E3
Remote controller transmission error
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 worked/
U2
insufficient refrigerant
Abnormal high pressure (63H worked)/ 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 such as overvoltage or voltage shortage and
U9,UH
abnormal synchronous signal to main circuit/Current sensor error
–
–
–
–
Others
Other errors
Beep Beep
1
st
2
nd
· · · Repeated
Off
On
On
Approx. 2.5 sec.
0.5 sec.
0.5 sec.
Number of blinks/beeps in pattern indicates
the check code in the following table
Beep
rd
th
3
n
On
On
Off
0.5 sec.
Approx. 2.5 sec.
Symptom
Symptom
Beep
Beep
1
st
2
nd
· · · Repeated
On
On
On
Approx. 3 sec.
0.5 sec.
0.5 sec.
Number of blinks/beeps in pattern indicates
the check code in the following table
Remark
As for indoor
unit, refer to
indoor unit's
service manual.
Remark
For details, check
the LED display
of the outdoor
controller board.
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