Malfunction-Diagnosis Method At Maintenance Service - Mitsubishi Electric PUHZ-RP3VHA Technical & Service Manual

(2) Digital wireless 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>
CHECK
CHECK
display
TEMP
ON/OFF
ON/OFF
button
AUTO STOP
FAN
MODE AUTO START
VANE
CHECK LOUVER
CHECK min
TEST RUN
button
RESET
SET CLOCK
[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
h
press the HOUR button.
4. Point the remote controller at the
sensor on the indoor unit and
press the ON/OFF button.
Malfunction diagnosis can be performed only for refrigerant system control-
ling wireless units.
Inspected unit
• "CHECK" lights, and refrigerant
• Check that the remote controller's
• Select the refrigerant address of the
Note: Set refrigerant address using the
• If an air conditioner error occurs, the
• The check mode is canceled.
Error code Beep output Operation LED
beep O 1 time 1 sec. O 1 time
P1
beep O 2 times
P2 1 sec.O 2 times
beep O 4 times
P4 1 sec.O 4 times
beep O 5 times
P5
1 sec.O 5 times
beep O 6 times
P6 1 sec.O 6 times
beep O 8 times
P8 1 sec.O 8 times
beep O 2 times
P9 1 sec.O 2 times
E4, E5 Other than above Other than above
26
address "00" flashes.
display has stopped before continuing.
indoor unit for the self-diagnosis.
outdoor unit's DIP switch (SW1).
(For more information, see the
outdoor unit installation manual.)
indoor unit's sensor emits an intermit-
tent buzzer sound, the operation light
flashes, and the error code is
output.
(It takes 3 seconds at most for error
code to appear.)
Inspected unit Check code Beep output
F1–F9
beep beep O 1 time
U0–UP
E6–EE Other than above
No check code
No output
(normal)
No check code
(mistake of match-
beep beep beep
ing with refrigerant
address)
Operation LED
(0.4sec+0.4sec)
O 1 time
Other than above
Lights off
Lights off