EN
EN-16
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
Wired remote
controller
Symptom
Remark
Beeper sounds/OPERATION
INDICATOR lamp blinks (Num-
ber of times)
Check code
1
P1
Intake sensor error
2
P2
Pipe (TH2) sensor error
P9
Pipe (TH5) sensor error
3
E6, E7
Indoor/outdoor unit communication error
4
P4
Drain sensor error / Float switch connector open
5
P5
Drain pump error
PA
Forced compressor error
6
P6
Freezing/Overheating protection operation
7
EE
Communication error between indoor and outdoor units
8
P8
Pipe temperature error
9
E4
Remote controller signal receiving error
10
—
—
11
PB (Pb)
Indoor unit fan motor error
12
FB (Fb)
Indoor unit control system error (memory error, etc.)
14
PL
Refrigerant circuit abnormal
No sound
E0, E3
Remote controller transmission error
No sound
E1, E2
Remote controller control board error
No sound
– – – –
No corresponding
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wireless remote controller
Wired remote
controller
Symptom
Remark
Beeper sounds/OPERATION
INDICATOR lamp blinks (Num-
ber of times)
Check code
1
E9
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
For details, check the LED
display of the outdoor controller
board.
2
UP
Compressor overcurrent interruption
3
U3, U4
Open/short of outdoor unit thermistors
14
PL or Others
Abnormality of refrigerant circuit or other errors
*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.
• 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)
OPERATION IN-
DICATOR 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
Number of blinks/beeps in pattern indicates the check
code in the following table (i.e., n=5 for “U2”)
Number of blinks/beeps in pattern indicates 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 IN-
DICATOR 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
Number of blinks/beeps in pattern indicates the check
code in the following table (i.e., n=5 for “P5”)
Number of blinks/beeps in pattern indicates 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 A]
See the table below for the details of the LED display (LED 1, 2, and 3) on the indoor controller board.
LED 1 (microcomputer power supply)
Indicates whether control power is supplied. Make sure that this LED is always lit.
LED 2 (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.
LED 3 (indoor/outdoor unit communication)
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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