Si-95
Troubleshooting
Troubleshooting Inverter K Series
81
2.5
Indoor Unit: Malfunction of Swing Flap Motor (M1S)
Remote Controller
Display
AAA
A7777
Supposed Causes
■
Defect of swing motor
■
Defect of connection cable (power supply and limit switch)
■
Defect of air flow direction adjusting flap-cam
■
Defect of indoor unit PC board
Troubleshooting
Replace the limit switch connecting
cable.
Replace indoor unit PC board.
Replace the power supply connecting
cable.
Replace swing motor.
Take the cam mechanism apart,
reassemble and turn on again.
YES
NO
YES
YES
NO
YES
NO
Connect the connector to X9A and
turn on again.
Replace indoor unit PC board.
NO
NO
YES
NO
YES
NO
YES
YES
NO
Indoor unit
is a model equipped with
a swing flap function
The swing
motor works when
the power supply is turned off
and then back on.
When
the air flow
direction flap's cam
mechanism is disconnected from
the swing motor, operation
is normal when turned
on again.
The connecting cable
has no continuity.
After
turning
the swing-flap
ON and then
stopping with the
remote controller, the
voltage of X6A of the indoor
unit PC board is 220 ~ 240 VAC
(60 Hz) / 220 VAC (50 Hz)
when turnedon again
(within 30 seconds
of turning on
again).
The connector
is connected to X9A of
the indoor unit PC
board.
The limit switch
functions normally.
The connecting
cable is short-circuited
or disconnected.
Replace swing motor.
(VF032)
SI-95.BOOK Page 81 Friday, March 31, 2000 10:59 AM
