Service manual

66
LOSSNAY control switch does not work.
LOSSNAY control switch can not work during interlock opera-
tion.
LOSSNAY control switch is effective only while Mr. SLIM is not
operating.
Symptom
LOSSNAY air speed can not be controlled in interlock opera-
tion.
LOSSNAY fan speed is fixed to HIGH during interlock opera-
tion.
LOSSNAY fan speed LOW/HIGH can be switched only during
LOSSNAY individual operation with the LOSSNAY control
switch.
Cause
For LOSSNAY, troubleshooting 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.
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 5 to
20 seconds operation
Protection function is working.
Air discharge display
is OFF and 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.
Defroster is broken.
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.
Refer to check code on remote controller display.
See page 64.
Indoor controller is
damaged.
Dip switch setting is
wrong.
Indoor controller is
damaged.
Vane motor is
damaged.
Auto vane is wired after
power is turned to ON.
Poorly connected
Disconnected
7. OTHER TROUBLES AND CAUSES
Vane motor is damaged.
“CENTRALLY CONTROLLED” is displayed.