Carrier TOSHIBA MMK-UP0151HP-UL Service Manual page 134

1
In the "Field setting menu" screen, press
[ ] and [
then press [
Test mode is set, and returns to the "Field

setting menu" screen. Press the [
button 2 times, to open screen (2).
2
Press [ ON/OFF]
Operation starts, and in test mode screen (1)

opens. (While stopped, it is screen (2))
Test mode is done while the operating mode is

set to "Cool" or "Heat".
The temperature cannot be set in test mode.

Check codes are displayed in the normal way.

3
After completing test mode, in the "Field
setting menu" screen, press [
[ ] to select "Test mode", and then press
[ Set/Fix]
Screen (3) appears.

Press [ Set/Fix] to end test mode and do

normal operation.
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] to select "Test mode", and
Set/Fix]
] and
Return]