Toshiba Super MMU-AP0092H Service Manual page 32

Confirmation and check
When a trouble occurred in the air conditioner, the
check code and the indoor unit No. appear on the
display part of the remote controller.
The check code is only displayed during the operation.
If the display disappears, operate the air conditioner
according to the following "Confirmation of error
history" for confirmation.
Confirmation of error history
When a trouble occurred on the air conditioner, the
trouble history can be confirmed with the following
procedure. (The trouble history is stored in memory
up to 4 troubles.)
The history can be confirmed from both operating
status and stop status.
Procedure
When pushing
for 4 seconds or more, the following display appears.
If [ Service check] is displayed, the mode enters
1
in the trouble history mode.
• [01: Order of trouble history] is displayed in CODE No. window.
• [Check code] is displayed.
• [Indoor unit address in which an error occurred] is displayed in UNIT No.
Every pushing of [
is displayed in order. The numbers in CODE No. indicate CODE No. [01] (latest) → [04] (oldest).
2
CAUTION
Do not push
3
After confirmation, push
1. Check the troubles 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 service code are explained in Service Manual.
Check these items. If any of these problems still remains, stop the operation, turn off the leakage breaker, and
then notifies the dealer of the serial number and details of the error.
Never repair any part by yourself as it is dangerous.
When and a combination of
inform the dealer of the display content.
SET TEST
and buttons at the same time
/ ] button used to set temperature, the trouble history stored in memory
CL
button because all the trouble history of the indoor unit will be deleted.
TEST
button to return to the usual display.
, , , or and a number are displayed on the remote controller, also
Check code
TEMP.
2
FILTER
RESET TEST
3
Description
32
Indoor unit No. in which
an error occurred
ON / OFF
TIMER SET FAN MODE
TIME SAVE VENT
SET CL SWING/FIX UNIT LOUVER
1