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7 Select the setting contents of the selected mode.
When the D [
(Fan Speed Adjustment)] button is pressed, the
current setting No. flashes. Use this to check the currently set con-
tents.
Setting No. display
Setting No. 1 = Simultaneous operation indoor units balance
8 The contents set at steps 3 to 7 are registered.
When the A [ON/OFF] button is pressed, the mode No. and setting No. flash and registration begins. The flashing mode No. and
setting No. change to a steady light and setting ends.
* When "– –" appears at the mode No. and setting No. displays and "
Make sure there are no noise sources near the transmission line.
9 To select more functions, press the D [
? End function selection.
Press and hold down the C [TEMP. (
After a while, the function selection display disappears and the remote controller returns to the air conditioner off display.
* Do not operate the air conditioner from the remote controller for 30 seconds after the end of function selection.
NOTE: When the functions of an indoor unit were changed by function selection after the end of installation, always indicate the set contents
by entering a
or other mark in the appropriate check field of Table 1.
8
Self diagnosis
Retrieve the error history of each unit using the simple MA controller.
1 Switch to the self-diagnosis mode.
When the A [ON/OFF] button and the C [TEMP. (
are pressed for 5 seconds or longer, the figure shown below is
displayed.
Self-diagnosis address or self-
diagnosis refrigerant address
3 Self-diagnosis result display <Error history> (For the contents of the error code, refer to the indoor unit installation manual or service handbook.)
Error code 4 digits or error code 2 digits
4 Error history reset
The error history is displayed in 3 self-diagnosis results display.
When the D [
(Fan Speed Adjustment)] button is pressed two
times successively within three seconds, the self-diagnosis object ad-
dress and refrigerant address flash.
" flashes at the room temperature display, communication is probably abnormal.
(Fan Speed Adjustment)] and repeat steps 3 to 8.
)] and D [
(Fan Speed Adjustment)] buttons at the same time for two seconds or longer.
)] button
(Alternate
display)
Error detection attribute
<When there is no error history>
(Alternate
display)
Select the setting No. using the B [TEMP. (
buttons.
Setting No. 3 = Remote controller built-in sensor
2 Set the address or refrigerant address No. you want to self-diagnosis.
When the B [TEMP. (
)] and C [TEMP. (
decreases and increases between 01 and 50 or 00 and 15. Set it to the
address No. or refrigerant address No. you want to self-diagnosis.
Approximately three seconds after the change operation, the self-diagnosis refrig-
erant address changes from flashing to a steady light and self-diagnosis begins.
Address 4 digits or unit address No. 2 digits
<When opposite side does not exist>
When the error history was reset, the display shown below appears.
When error history reset failed, the error contents are displayed again.
)] and C [TEMP. (
)]
)] are pressed, the address
7
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