Mitsubishi Electric PKA-RP-FAL Installation Manual page 9

7. Test run
• For description of each check code, refer to the following table.
1 Check code
P1 Intake sensor error
P2 Pipe sensor error
P4 Drain sensor error
P5 Drain pump error
P6 Freezing / Overheating safeguard operation
P8 Pipe temperature error
P9 TH5 sensor error
U0–UP Outdoor unit error
F1–FA Outdoor unit error
E0–E5 Signal error between remote controller and indoor units
E6–EF Communication error between indoor and outdoor units
– – No alarm history
F F F F No unit
• 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.
Wired remote controller
H0
H0 → Error code
Display messages do not apper even
when operation switch is turned ON
(operation lamp does not light up).
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 pipng sound.
Note:
Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED 1, 2, 3) provided on the indoor controller, refer to the following table.
LED 1 (power for microcomputer)
LED 2 (power for remote controller)
LED 3 (communication between indoor and outdoor units)
Symptom
Symptom
LED 1, 2 (PCB in outdoor unit)
For about 2
After LED 1, 2 are lighted, LED 2 is turned off,
minutes following
then only LED 1 is lighted. (Correct operation)
power-on
Only LED 1 is lighted. → LED 1, 2 blink.
After about 2
minutes has
expired following
power-on Only LED 1 is lighted. → LED 1 blinks twice,
LED 2 blinks once.
Indicates whether control power is supplied. Make sure that this LED is always lit.
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".
Indicates state of communication between the indoor and outdoor units. Make sure that this LED is
always blinking.
2 Buzzer sound
Single beep × 1
Single beep × 2
Single beep × 4
Single beep × 5
Single beep × 6
Single beep × 8
Single beep × 2
Double beep × 1 Lit for 0.4 sec. + 0.4 sec. × 1
Double beep × 1 Lit for 0.4 sec. + 0.4 sec. × 1
Sounds other than above
Sounds other than above
No sound
Triple beep
Cause
• 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
3 OPE LED
Lit for 1 sec. × 1
Lit for 1 sec. × 2
Lit for 1 sec. × 4
Lit for 1 sec. × 5
Lit for 1 sec. × 6
Lit for 1 sec. × 8
Lit for 1 sec. × 2
Lights other than above
Lights other than above
Not lit
Not lit
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