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8. Test run
Step 5 Stop the test run.
1 Press the [ON/OFF] button to stop the test run. (The Test run menu will appear.)
Note: If an error is displayed on the remote controller, see the table below.
[Output pattern A] Errors detected by indoor unit
Wireless remote controller
Beeper sounds/OPERATION
INDICATOR lamp blinks (Num-
ber of times)
1
2
3
4
5
6
7
8
9
10
11
12
14
No sound
No sound
No sound
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wireless remote controller
Beeper sounds/OPERATION
INDICATOR lamp blinks (Num-
ber of times)
1
2
3
14
*1 If the beeper does not sound again after the initial 2 beeps to confi rm 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 confi rm the self-check start signal was received, the speci-
fi ed refrigerant address is incorrect.
• On 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.
• Refer to the following tables for details on the check codes. (Wireless remote controller)
[Output pattern A]
Beeper sounds
Beep
OPERATION IN-
DICATOR lamp
blinking pattern
Off
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 IN-
DICATOR lamp
blinking pattern
Off
Approx. 2.5 sec.
Self-check
starts
(Start signal
received)
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)
LED2 (remote controller power supply)
LED3 (indoor/outdoor unit communication)
Note:
If the unit is operated continuously during a test run, the unit stops after 2 hours.
17
Wired remote
controller
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
—
—
PB (Pb)
Indoor unit fan motor error
FB (Fb)
Indoor unit control system error (memory error, etc.)
PL
Refrigerant circuit abnormal
E0, E3
Remote controller transmission error
E1, E2
Remote controller control board error
– – – –
No corresponding
Wired remote
controller
Check code
E9
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
UP
Compressor overcurrent interruption
U3, U4
Open/short of outdoor unit thermistors
PL or Others
Abnormality of refrigerant circuit or other errors
Beep
Beep
Beep
Beep
1
st
2
nd
3
rd
n
th
On
On
On
On
0.5 sec.
0.5 sec.
0.5 sec.
0.5 sec.
Beep
Beep
1
st
2
nd
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")
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.
Symptom
Symptom
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
Beep
3
rd
n
th
On
On
Off
0.5 sec.
0.5 sec.
Approx. 2.5 sec.
Remark
Remark
For details, check the LED
display of the outdoor controller
board.
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
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