Toshiba RAS-18YKH-E Service Manual page 22

(2) Self-diagnosis with remote control
With the indoor unit control, self-diagnosis of
protective circuit action can be done by turning
the remote control operation into service mode,
operating the remote control, observing the
remote control indicators and checking whether
TIMER lamp flashes (5 Hz).
Note :
• To perform this self-diagnosis, the remote
control with the service code of 43069666
is required.
<How to select remote control operation mode>
1) Selecting service mode
Push the switch button provided on rear
bottom of the wireless remote control with a
tip of pencil for more than 3 seconds.
Make sure the setting temperature
displayed on the display and other display is
turned off.
is
ACL CLOCK
(Rear bottom of remote control)
2) Selecting ordinary mode
Push the all clear button (ACL) on the rear
bottom of the wireless remote control with a
tip of pencil for more than 3 seconds. Make
sure the operation mode display, wind volume
display, clock display and setting temperature
display are turned on and " : " of the clock
display is flashing.
<Cautions when doing service>
1) After completion of servicing, always push
the all clear (ACL) button to return the
operation mode to the normal mode.
2) After completion of servicing by the check
code, turn off the power once and then turn
on the power to reset memorized contents of
the microcomputer to the initial status.
All clear button
Switch for selecting
service mode
ACL CLOCK
Rear bottom cover
Fig. 9-2-1
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