9. Test run
• Refer to the following tables for details on the check codes.
[Output pattern A]
Beeper sounds
Beep
OPERATION
INDICATOR
lamp flash
Off
pattern
Approx. 2.5 sec.
Self-check
starts
(Start signal
Number of flashes/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 flash
Off
pattern
Approx. 2.5 sec.
Self-check
starts
(Start signal
received)
[Output pattern A] Errors detected by indoor unit
Wireless re-
Wired remote controller
mote controller
Beeper sounds/OPERATION
INDICATOR lamp flashes
Check code
(Number of times)
1
P1
P2
2
P9
3
E6, E7
4
P4
P5
5
PA
6
P6
7
EE
8
P8
9
E4
10
—
11
—
12
Fb
14
PL
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wired remote
Wireless remote controller
Beeper sounds/OPERATION
INDICATOR lamp flashes
Check code
(Number of times)
1
E9
2
UP
3
U3, U4
4
UF
5
U2
6
U1, Ud
7
U5
8
U8
9
U6
10
U7
11
U9, UH
12
—
13
—
14
Others
*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.
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
2
st
nd
On
On
On
Approx. 3 sec.
0.5 sec.
0.5 sec.
Number of flashes/beeps in pattern indicates the check
code in the following table (i.e., n=5 for "U2")
Intake sensor error
Pipe (TH2) sensor error
Pipe (TH5) sensor error
Indoor/outdoor unit communication error
Drain sensor error
Drain pump error
Forced compressor error
Freezing/Overheating safeguard operation
Communication error between indoor and outdoor units
Pipe temperature error
Remote controller signal receiving error
—
—
Indoor unit control system error (memory error, etc.)
Refrigerant circuit abnormal
controller
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
Compressor overcurrent interruption
Open/short of outdoor unit thermistors
Compressor overcurrent interruption (When compressor locked)
Abnormal high discharging temperature/49C worked/insufficient refrigerant
Abnormal high pressure (63H worked)/Overheating safeguard operation
Abnormal temperature of heat sink
Outdoor unit fan safeguard stop
Compressor overcurrent interruption/Abnormal of power module
Abnormality of super heat due to low discharge temperature
Abnormality such as overvoltage or voltage shortage and abnormal synchronous
signal to main circuit/Current sensor error
—
—
Other errors (Refer to the technical manual for the outdoor unit.)
Beep
Beep
1
2
· · · Repeated
st
nd
Off
On
On
Approx. 2.5 sec.
0.5 sec.
0.5 sec.
Number of flashes/beeps in pattern indicates
the check code in the following table
Beep
Beep
3
n
rd
th
On
On
Off
0.5 sec.
0.5 sec.
Approx. 2.5 sec.
Symptom
Symptom
Beep
Beep
1
2
· · · Repeated
st
nd
On
On
On
Approx. 3 sec.
0.5 sec.
0.5 sec.
Number of flashes/beeps in pattern indicates
the check code in the following table
Remark
Remark
For details, check the LED display
of the outdoor controller board.
15