Toshiba MMD-AP0481HF2UL Service Manual page 81

CAUTION
If any of the following conditions occur, turn off the main power supply switch and immediately contact the dealer:
• Switch operation does not work properly.
• The main power fuse often blows out, or the circuit breaker is often activated.
• A foreign matter or water fall inside the air conditioner.
• When the air conditioner does not operate even after the cause of the protective device activation has been removed.
(The operation lamp and on the remote control are flashing. When
and a number are displayed on the remote control, also inform a qualified service person of the display content.)
• Any other unusual conditions are observed.
Confirmation and check
When a problem occurred in the air conditioner, the check code and
the indoor unit No. appear on the display part of the remote control.
The check code is only displayed during the operation.
If the display disappears, operate the air conditioner according to the
following "Confirmation of check code log" for confirmation.
Confirmation of check code log
When a problem occurred on the air conditioner, the
check code log can be confirmed with the following
procedure. (The check code log is stored in memory up
to 4 check code.)
The log can be confirmed from both operating status
and stop status.
Procedure
When pushing and buttons at the same time for 4
seconds or more, the following display appears.
If [ Service check] is displayed, the mode enters in the check
1
code log mode.
• [01 : Order of check code log] is displayed in CODE No. window.
• [Check code] is displayed.
• [Indoor unit address in which a problem occurred] is displayed
in UNIT No.
Every pushing of [ /
displayed in order.
2
The numbers in CODE No. indicate CODE No. [01] (latest) to [04] (oldest).
CAUTION
Do not push button because all the check code log of the indoor unit will be deleted.
3
After confirmation, push button to return to the usual display.
1. Check the check code according to the above procedure.
2. Ask an authorized dealer or qualified service (maintenance) professional to repair or maintain the air conditioner.
3. More details of the check code are explained in Service Manual.
17-EN
and a combination of
Indoor unit No. in which a
Check code
problem occurred
2 TEMP. ON / OFF
TIMER SET FAN MODE
TIME SAVE A A VENT
FILTER L L
RESET TEST SET CL SWING/FIX UNIT LOUVER
3
Description
] button used to set temperature, the check code log stored in memory is
– 9 –
, , , , or
1
18-EN