Mitsubishi Electric Mr.SLIM PKA-RP35FAL Manuel D'installation page 13

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7. Test run
[Output pattern A] Errors detected by indoor unit
Wired remote
Wireless remote controller
controller
Beeper sounds/OPERATION
INDICATOR lamp flashes
Check code
(Number of times)
1
P1
2
P2, P9
3
E6, E7
4
P4
5
P5
6
P6
7
EE
8
P8
9
E4
10
11
12
Fb
No sound
– –
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wired remote
Wireless remote controller
controller
Beeper sounds/OPERATION
INDICATOR lamp flashes
Check code
(Number of times)
1
E9
2
UP
3
U3, U4
4
UF
5
U2
6
U1, Ud
7
U5
8
U8
9
U6
10
U7
11
U9, UH
12
13
14
Others
*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.
• 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
PLEASE WAIT
PLEASE WAIT → Error code
Display messages do not appear even
when operation switch is turned ON
(operation lamp does not light up).
Intake sensor error
Pipe (Liquid or 2-phase pipe) sensor error
Indoor/outdoor unit communication error
Drain sensor error
Drain pump error
Freezing/Overheating safeguard operation
Communication error between indoor and outdoor units
Pipe temperature error
Remote controller signal receiving error
Indoor unit control system error (memory error, etc.)
No corresponding
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
Compressor overcurrent interruption
Open/short of outdoor unit thermistors
Compressor overcurrent interruption (When compressor locked)
Abnormal high discharging temperature/49C worked/insufficient refrigerant
Abnormal high pressure (63H worked)/Overheating safeguard operation
Abnormal temperature of heat sink
Outdoor unit fan safeguard stop
Compressor overcurrent interruption/Abnormal of power module
Abnormality of super heat due to low discharge temperature
Abnormality such as overvoltage or voltage shortage and abnormal synchronous
signal to main circuit/Current sensor error
Other errors (Refer to the technical manual for the outdoor unit.)
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.
Symptom
Symptom
• 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
Remark
Remark
For details, check the LED display
of the outdoor controller board.
Cause
13

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