Mitsubishi PLA-ZM100EA.UK, Руководство по обслуживанию

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[Output pattern A] Errors detected by indoor unit
Wireless remote controller
Wired remote
controller
Symptom Remark Beeper sounds/OPERATION
INDICATOR lamp blinks
(Number of times)
Check code
1 P1 Intake sensor error
2
P2 Pipe (TH2) sensor error
P9 Pipe (TH5) sensor error
3
E6, E7 Indoor/indoor unit communication error
4 P4 Drain sensor error / Float switch connector open
5
P5 Drain overflow protection operation
PA Forced compressor error (due to water leakage abnormality)
6 P6
Freeze (during cooling operation)/Overheat protection operation (during heating
operation)
7 EE Combination error between indoor and outdoor unit
8 P8 Pipe temperature error
9 E4, E5 Communication error between wired remote controller and indoor unit
10
— —
11 Pb Indoor unit fan motor error
12 Fb Indoor unit control system error (memory error, etc.)
14 PL Refrigerant circuit abnormal
—
E0,E3 Remote controller transmission error
—
E1,E2 Remote controller control board error
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Note: The supported check codes may vary depending on the connected outdoor unit.
Wireless remote controller
Wired remote
controller
Symptom Remark Beeper sounds/OPERATION
INDICATOR lamp blinks
(Number of times)
Check code
1
E9 Indoor/outdoor unit communication error
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
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)/Overheat protection operation
7
U5 Abnormal temperature of heat sink
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 synchro
-
nous signal to main circuit/Current sensor error
12
— —
13
— —
14 Others Other errors (Refer to the technical manual for the outdoor unit.)
Notes:
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 seconds)” 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.
•
If the unit cannot be operated properly after the test run, refer to the following table to find out the cause.
Symptom
Cause
Wired remote controller
On the wireless remote controller with condition above, following phenomena take place.
•
No signals from the remote controller can be received.
•
Operation lamp is blinking.
•
The buzzer makes a short ping sound.
PLEASE WAIT
PLEASE WAIT
→
check code
No messages appear even
when operation switch is turned
ON (operation lamp does not
light up).
For about 2 minutes after power-on
Subsequent to about 2 minutes
after power-on
•
For about 2 minutes after power-on,operation of the
remote controller is not possible due to system startup.
(Correct operation)
•
Connector for the outdoor unit’s protection device is not
connected.
•
Reverse or open phase wiring for the outdoor unit’s
power terminal block
•
Incorrect wiring between indoor and outdoor units.
(incorrect polarity of S1, S2, S3)
•
Remote controller wire short
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 microprocessor)
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.
OCH650