9
• For description of each check code, refer to the following table.
1
Check code
Symptom
2
Buzzer sound
3
OPE LED
P1
Intake sensor error
Single beep
×
1
Lit for 1 sec.
×
1
P2
Pipe sensor error
Single beep
×
2
Lit for 1 sec.
×
2
P4
Drain sensor error
Single beep
×
4
Lit for 1 sec.
×
4
P5
Drain pump error
Single beep
×
5
Lit for 1 sec.
×
5
P6
Freezing/Overheating safeguard operation
Single beep
×
6
Lit for 1 sec.
×
6
P8
Pipe temperature error
Single beep
×
8
Lit for 1 sec.
×
8
P9
TH5 sensor error
Single beep
×
2
Lit for 1 sec.
×
2
U0–UP
Outdoor unit error
Double beep
×
1
Lit for 0.4 sec. + 0.4 sec.
×
1
F1–FA
Outdoor unit error
Double beep
×
1
Lit for 0.4 sec. + 0.4 sec.
×
1
E0–E5
Signal error between remote controller and indoor units
Sounds other than above
Lights other than above
E6–EF
Communication error between indoor and outdoor units
Sounds other than above
Lights other than above
– –
No alarm history
No sound
Not lit
F F F F
No unit
Triple beep
Not lit
• On wireless remote controller
2
The continuous buzzer sounds from receiving section of indoor unit.
3
Blink of operation lamp
• On wired remote controller
1
Check code displayed in the LCD.
• If the unit cannot be operated properly after the above test run has been performed, refer to the following table to remove the cause.
Symptom
Cause
Wired remote controller
LED 1, 2 (PCB in outdoor unit)
H0
H0
→
Error code
Display messages do not appear even
when operation switch is turned ON
(operation lamp does not light up).
For about 2
minutes following
power-on
After about 2
minutes has
expired following
power-on
After LED 1, 2 are lighted, LED 2 is turned off,
then only LED 1 is lighted. (Correct operation)
Only LED 1 is lighted.
→
LED 1, 2 blink.
Only LED 1 is lighted.
→
LED 1 blinks twice,
LED 2 blinks once.
• For about 2 minutes following power-on, operation of the
remote controller is not possible due to system start-up. (Cor-
rect operation)
• Connector for the outdoor unit’s protection device is not con-
nected.
• Reverse or open phase wiring for the outdoor unit’s power
terminal block (L1, L2, L3)
• Incorrect wiring between indoor and outdoor units (incorrect
polarity of S1, S2, S3)
• Remote controller wire short
On the wireless remote controller with condition above, following phenomena takes place.
• No signals from the remote controller are accepted.
• OPE lamp is blinking.
• The buzzer makes a short piping sound.
Note:
Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED1, 2, 3) provided on the indoor controller, refer to the following table.
LED1 (power for microcomputer)
Indicates whether control power is supplied. Make sure that this LED is always lit.
LED2 (power for remote controller)
Indicates whether power is supplied to the remote controller. This LED lights only in the case of the
indoor unit which is connected to the outdoor unit refrigerant address “0”.
LED3 (communication between indoor and outdoor units)
Indicates state of communication between the indoor and outdoor units. Make sure that this LED is
always blinking.
7. Test run
