Mitsubishi Electric PEAD-RP EA, Руководство по установке

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12
[Output pattern A] Errors detected by indoor unit
Beeper sounds/OPERATION Symptom Remark
INDICATOR lamp flashes Check code
(Number of times)
1 P1 Intake sensor error
2 P2, P9 Pipe (Liquid or 2-phase pipe) sensor error
3 E6, E7 Indoor/outdoor unit communication error
4 P4 Drain sensor error
5 P5 Drain pump error
6 P6 Freezing/Overheating safeguard operation
7 EE Communication error between indoor and outdoor units
8 P8 Pipe temperature error
9 E4 Remote controller signal receiving error
10 – –
11 – –
12 Fb Indoor unit control system error (memory error, etc.)
No sound – – No corresponding
9. Test run
Wireless remote controller
Wired remote
controller
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Beeper sounds/OPERATION Symptom Remark
INDICATOR lamp flashes Check code
(Number of times)
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 safeguard operation
7 U5 Abnormal temperature of heat sink
8 U8 Outdoor unit fan safeguard 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.)
Wireless remote controller
Wired remote
controller
For details, check the LED display
of the outdoor controller board.
• 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)
PLEASE WAIT
PLEASE WAIT
→
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
*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.
• 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.
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.