B-103
TROUBLESHOOTING
OUTDOOR UNIT
S series
OUTDOOR UNIT
2-2. Wired remote controller
2-3. Failure mode table (Wireless remote controller/Wired remote controller)
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK
DAY
MONITOR/SET
CLOCK
ON/OFF
ERROR CODE
ERROR CODE
ERROR CODE
Turn on the power.
Press the [CHECK] button twice.
Set address with [TEMP] button if system control is used.
Press the [ON/OFF] button to stop the self-check.
CHECK button
Address
TEMP. button
IC : Indoor unit
OC: Outdoor unit
Check code
Unit No.
Timer ON/OFF button
<To cancel check code>
Display the error code on the self-check result display screen.
The address for self-check will blink when the
ON/OFF
button is pressed twice within three seconds.
– – – – : No trouble generated in the past.
F F F F : No corresponding unit.
[Output pattern A] Errors detected by indoor unit
Beeper sounds/OPERATION INDICATOR
lamp blinks
Wireless remote controller
Check code
Wired remote controller
Symptom
Remark
(Number of times)
1
P1
Intake sensor error
2
P2
P9
Pipe (TH2) sensor error
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
6
P6
Freezing/Overheating protection operation
7
EE
Communication error between indoor and outdoor units
8
P8
Pipe temperature error
9
E4, E5
Remote controller signal receiving error
10
–
11
–
–
–
–
–
–
–
12
Fb
Indoor unit control system error (memory error, etc.)
–
E1, E2
Remote controller control board error
–
E0, E3
Remote controller transmission error
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Check code
Symptom
Remark
1
E9
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
2
UP
Compressor overcurrent interruption
3
U3,U4
Open/short of outdoor unit thermistors
4
UF
Compressor overcurrent interruption (When compressor locked)
5
U2
Abnormal high discharging temperature/49C worked/insufficient refrigerant
6
U1,Ud
Abnormal high pressure (63H worked)/Overheating protection operation
7
U5
Abnormal temperature of heatsink
8
U8
Outdoor unit fan protection stop
9
U6
Compressor overcurrent interruption/Abnormal of power module
10
U7
Abnormality of super heat due to low discharge temperature
11
U9,UH
Abnormality such as overvoltage or voltage shortage and abnormal synchronous
signal to main circuit/Current sensor error
12
13
14
Others
Other errors (Refer to the technical manual for the outdoor unit)
*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.
For details, check the LED display
of the outdoor controller board.
• 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.
Beeper sounds/OPERATION INDICATOR
lamp blinkes
Wireless remote controller
Wired remote controller
(Number of times)
