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. Test run
• Refer to the following tables for details on the check codes. (IR wireless remote controller)
[Output pattern A]
Beeper sounds
Beep
OPERATION
INDICATOR
lamp blinking
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 blinking
Off
pattern
Approx. 2.5 sec.
Self-check
starts
(Start signal
received)
[Output pattern A] Errors detected by indoor unit
IR wireless remote controller
Beeper sounds/OPERATION
INDICATOR lamp blinks
(Number of times)
1
2
3
4
5
6
7
8
9
10
11
12
No sound
No sound
No sound
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
IR wireless 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
*1 If the beeper does not sound again after the initial two 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 three times continuously "beep, beep, beep (0.4 + 0.4 + 0.4 sec.)" after the initial two beeps to confirm the self-check start signal was received,
the specified refrigerant address is incorrect.
• On IR wireless remote controller
The continuous buzzer sounds from receiving section of indoor unit.
Blink of operation lamp
• On wired remote controller
Check code displayed in the LCD.
Beep
Beep
Beep
Beep
1
st
2
nd
3
rd
th
n
On
On
On
On
0.5 sec.
0.5 sec.
0.5 sec.
0.5 sec.
Beep
Beep
st
nd
1
2
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 (i.e., n=5 for "U2")
Wired remote
controller
RF thermostat
Check code
P1
Intake sensor error
P2
Pipe (TH2) sensor error
P9
Pipe (TH5) sensor error
E6, E7
Indoor/outdoor unit communication error
P4
Drain sensor error / Float switch connector open
P5
Drain pump error
PA
Forced compressor error
P6
Freezing/Overheating protection operation
EE
Communication error between indoor and outdoor units
P8
Pipe temperature error
E4
Remote controller signal receiving error
—
—
—
—
Fb
Indoor unit control system error (memory error, etc.)
E0, E3
Remote controller transmission error
E1, E2
Remote controller control board error
— —
No corresponding
Wired remote
controller
RF thermostat
Check code
E9
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
UP
Compressor overcurrent interruption
U3, U4
Open/short of outdoor unit thermistors
UF
Compressor overcurrent interruption (When compressor locked)
U2
Abnormal high discharging temperature/49C worked/insufficient refrigerant
U1, Ud
Abnormal high pressure (63H worked)/Overheating protection operation
U5
Abnormal temperature of heat sink
U8
Outdoor unit fan protection stop
U6
Compressor overcurrent interruption/Abnormal of power module
U7
Abnormality of super heat due to low discharge temperature
Abnormality such as overvoltage or voltage shortage and abnormal
U9, UH
synchronous signal to main circuit/Current sensor error
—
—
—
—
Others
Other errors (Refer to the technical manual for the outdoor unit.)
Beep
Beep
st
nd
1
2
· · · 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
Beep
rd
th
3
n
On
On
Off
0.5 sec.
0.5 sec.
Approx. 2.5 sec.
Symptom
Symptom
Beep
Beep
st
nd
1
2
· · · 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
Remark
For details, check the LED
display of the outdoor controller
board.
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