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Push the CHK button by something with thin edge.
• Check is displayed in the indication
part of the remote controller.
Push toward the remote controller one by one.
If it is normal, the receiving sound “Pi” is heard
every pushing it and check code in the indication
part of the remote controller changes.
The timer lamp of the air conditioner flashes.
(5 times for 1 second)
• Check all of 35 check codes ( to ).
• Push to return to the objective code if passed.
If a trouble occurs, the receiving sound “Pi”
changes to Pi, Pi, Pi (continues for approx.
10 seconds).
Check the check code in the indication part
of the remote controller.
• 2-digits alphanumeric characters are displayed in the
indication part of the remote controller.
• All the lamps of the air conditioner flash
(5 times for 1 second).
To release the self-diagnosis function, push
button.
• Display returns to one before check.
MODE
TEMP.
FAN
START/STOP
ON OFF
RSV CNL
AUTO
COOL
DRY
HEAT
AUTO
LOW
MED.
HIGH
TIMER
CHK
MODE
ECONO.
Hr.ON OFF TIMER
˚C
TEMP.
AUTO
SET
FAN
Alphanumeric characters are
used for the check codes.
is 5. is 6.
is A. is B.
is C. is D.
1
2
3
TIMER
CHK
E
START/STOP
10-4. Self-Diagnosis by Remote Controller (Check Code)
(1) The self-diagnosis by the check code is performed while items B to E blocks are displayed.
(2) When turning the operation mode on the remote controller to the service mode, and operating the remote
controller, the controller of the indoor unit can self-diagnose operation of the protection circuit by displayed
contents (check code) on the remote controller, by whether all the lamps flash (5Hz) and the receiving
sound (Pi, Pi, Pi ... for 10 seconds) is heard. The timer lamp usually flashes (5Hz) during self-diagnosis.
10-4-1. Self-Diagnosis
Fig. 10-4-1
10-4-2. Operation Control by Rated Frequency in Service Mode
In the service mode, pushing “ON” or “OFF” operates the air conditioner by rated frequency of COOL or HEAT
mode for 30 minutes. (Cooling function operates under condition of room temperature by 24°C or more while
heating function by 23°C or less, respectively.)