Toshiba RAS-10YKV-E Service Manual page 43

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
MODE
AUTO
COOL
DRY
HEAT
START/STOP
AUTO
MODE
ON OFF
Alphanumeric characters are
used for the check codes.
is 5.
is A.
is C.
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.)
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E
CHK
TIMER
TEMP. FAN
AUTO
LOW
˚C
MED.
Hr.ON OFF TIMER
HIGH
TEMP.
SET FAN
ECONO.
CHK
TIMER
RSV CNL
is 6.
is B.
is D.
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Push the CHK button by something with thin edge.
1
• Check is displayed in the indication
part of the remote controller.
Push toward the remote controller one by one.
2
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 (
• 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
3
button.
• Display returns to one before check.
Fig. 10-4-1
– 43 –
to ).
START/STOP