Mitsubishi Electric SUZ-KA25VA5 Service Manual page 23

10-3-5. Self-diagnosis <Wireless remote controller>
<In case of trouble during operation, except for SLZ model>
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>
CHECK
CHECK
display
TEMP
ON/OFF
ON/OFF
button
AUTO STOP
FAN
AUTO START
MODE VANE
CHECK LOUVER
CHECK
TEST RUN
button
SET RESET CLOCK
10-3-6. Self-diagnosis <Wireless remote controller>
<In case of trouble during operation for SLZ model>
h
ON/OFF
TOO
WARM COOL
56
FAN SELECT
AUTO COOL
VANE
HEAT DRY
MODE
24
RESET
OCH603
[Procedure]
1. Press the CHECK button twice.
Refrigerant
address
display
2. Press the TEMP
Temperature
button
3. Point the remote controller at the
sensor on the indoor unit and
HOUR
press the HOUR button.
button
h
min
4. Point the remote controller at the
sensor on the indoor unit and
press the ON/OFF button.
[Procedure]
1 Turn ON the power.
2 While pressing both the MODE SELECT button and
TOO COOL button on the remote controller at the same
time, press the RESET button.
3 Firstly, release the RESET button.
TOO
4 And release the other 2 buttons since all LCD in
24
operation display section of the remote controller is
displayed after 3 seconds.
5 Transmit the signal of remote controller, pressing ON/ OFF
TIME
button on the remote controller.
(The above procedure allows OPERATION INDICATOR lamp
to indicate the failure-mode.)
6 Transmit the signal of remote controller, pressing a button other
23
than ON/ OFF button or VANE button to stop the self-check.
buttons.
OPERATION INDICATER
23
• "CHECK" lights, and refrigerant address
"00" flashes.
• Check that the remote controller's
display 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
outdoor unit installation manual.)
• If an air conditioner error occurs, the
indoor unit's sensor emits an intermittent
buzzer sound, the operation light
flashes, and the check code is output.
(It takes 3 seconds at most for check
code to appear.)
• The check mode is cancelled.