Mitsubishi Electric Mr. Slim PKA-A24KA4 Service Manual page 13

9-2. MALFUNCTION-DIAGNOSIS METHOD BY REMOTE CONTROLLER
<In case of trouble during operation>
When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform
unusual stop.
<
Malfunction-diagnosis method at maintenance service>
■ IR wireless remote controller
CHECK
CHECK
display
ON/OFF TEMP
ON/OFF
button
FAN AUTO STOP
AUTO START
MODE VANE
CHECK LOUVER
CHECK
TEST RUN
button
SET RESET CLOCK
■ Wired remote controller
ERROR CODE
TEMP. ON/OFF
MENU ON/OFF
BACK MONITOR/SET DAY
CLOCK OPERATION
PAR-21MAA
[Procedure]
1. Press the CHECK button twice.
Refrigerant
address
display
2. Press the temperature
Temperature
buttons.
button
3. Point the remote controller at the
HOUR
sensor on the indoor unit and
button
press the HOUR button.
h
min
4. Point the remote controller at the
sensor on the indoor unit and
press the ON/OFF button.
ERROR CODE
FILTER
CHECK TEST
ERROR CODE
CLEAR
Turn on the power.
Press the [CHECK] button twice.
Set address with [TEMP] button if system control is used.
Press the [ON/OFF] button to stop the self-check.
CHECK button
Address
TEMP. button
IC : Indoor unit
OC: Outdoor unit
Check code – – – – : No trouble generated in the past.
F F F F : No corresponding unit.
Unit No.
Timer ON/OFF button
<To delete check code>
Display the error code on the self-check result display screen.
The address for self-check will blink when the
button is pressed twice within 3 seconds.
13 13
• "CHECK" lights, and refrigerant address
"00" blinks.
• Check that the remote controller's dis-
play has stopped before continuing.
• Select the refrigerant address of the
indoor unit for the self-diagnosis.
Note: Set refrigerant address using the
outdoor unit's DIP switch (SW1).
(For more information, see the out-
door unit installation manual.)
• If an air conditioner error occurs, the
indoor unit's sensor emits an intermit-
tent buzzer sound, the operation lamp
blinks, and the error code is output.
(It takes 3 seconds at most for error
code to appear.)
• The check mode is cancelled.
To be continued to the next page.
ON/OFF