Mitsubishi Electric PKH-2GKLA Technical & Service Manual page 52

7. OTHER TROUBLES AND CAUSES
t
Vanes do not work.
Unit stops after 5 to 20
seconds operation
t
Airflow display is OFF
and VANE button
does not operate.
In this case, remote
controller is normal.
t
Power ON/OFF button
is not available.
OC231A
Vane motor does not work.
Connector is poorly connected.
Vane motor is poorly assembled.
Indoor controller board is damaged.
Protection function is working.
Indoor controller board
t
deems the auto vanes
are not attached to the
unit.
Horizontal angle can
t
not be detected.
Beep sound is heard,
t
but display is turned
OFF.
Beep sound is not
heard, and display
remains OFF.
t
"CENTRALLY CONTROLLED" is displayed.
Vane motor is damaged.
t
Vane motor relay is damaged.
Refer to check code on remote controller display.
t
See page 47.
Indoor controller is
damaged.
Dip switch setting is
wrong.
t
Indoor controller is
damaged.
Vane motor is dam-
aged.
Auto vane is wired after
power is turned to ON.
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.
t
Transmission wire is
poorly connected
52
Vane motor is damaged.
Transmission wire is
damaged.
Connector is poorly
connected.
Indoor terminal block is
poorly connected.
Remote controller ter-
minal block is poorly
connected.