8
9
9
Vanes do not work.
Vane motor does not work.
Connector is poorly connected.
Vane motor is poorly assembled.
Indoor controller board is damaged.
Unit stops after to 20
seconds operation
Protection function is working.
Airflow display is OFF
and VANE button
does not operate.
Indoor controller board
deems the auto vanes
are not attached to the
unit.
Horizontal angle can
not be detected.
In this case, remote
controller is normal.
Power ON/OFF button
is not available.
Beep sound is heard,
but display is turned
OFF.
Beep sound is not
heard, and display
remains OFF.
Indoor/outdoor connect-
ing wire is connected
incorrectly.
Indoor/outdoor connect-
ing wire shorts.
Compressor protector is
damaged.
Outdoor controller
board is detective
Remote controller is
damaged.
Transmission wire is
poorly connected
Transmission wire is
damaged.
Connector is poorly
connected.
Indoor terminal block is
poorly connected.
Remote controller ter-
minal block is poorly
connected.
Vane motor is damaged.
Vane motor relay is damaged.
Refer to check code on remote controller display.
See page .
Indoor controller is
damaged.
Dip switch setting is
wrong.
Indoor controller is
damaged.
Vane motor is dam-
aged.
Auto vane is wired after
power is turned to ON.
Vane motor is dam-
aged.
7. OTHER TROUBLES AND CAUSES
t
t
t
t
t
t
t
t
t
t
t
“CENTRALLY CONTROLLED” is displayed.
Symptom
LOSSNAY control switch does not work.
LOSSNAY air speed can not be controlled in interlock opera-
tion.
LOSSNAY control switch can not work during interlock opera-
tion.
LOSSNAY control switch is effective only while Mr. SLIM is not
operating.
LOSSNAY fan speed is fixed to HIGH during interlock opera-
tion.
LOSSNAY fan speed LOW/HIGH can be switched only dur-
ing LOSSNAY individual operation with the LOSSNAY control
switch.
Cause
For troubleshooting of LOSSNAY, refer to the LOSSNAY technical & service manual.
8. MR. SLIM/LOSSNAY INTERLOCK OPERATION
<Symptoms that are not malfunctions>
If any of the following symptoms occur, they are not malfunctions.
OC229A
