Specifications

Troubleshooting for RA Indoor Unit SiBE18-821
270 Troubleshooting
Troubleshooting
Check No.01
Refer to P.272
Check No.02
Refer to P.272
Turn off power supply
and disconnect fan motor
connector, then turn
power ON.
Turn off power supply
and disconnect fan motor
connector, then turn
power ON again.
Check No.01
Check output of fan
motor connector
Check No.01
Check output of fan
motor connector
Check No.02
Check output of indoor
unit PCB (1)
Check No.01
Check output of fan
motor connector
Check No.01
Check output of fan
motor connector
(Q0588)
YES
YES
NO
YES
YES
NO
YES
NO
NO
YES
NO
YES
NO
NO
YES
NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Replace fan motor.
Replace indoor
unit PCB (1) (Wall)
or PCB (2) (Floor).
Replace indoor
unit PCB (1).
Replace indoor
unit PCB (2).
Note : Motor may
break when
the motor
connector is
disconnected
while
remaining
power
supply.
Replace fan motor.
Replace indoor
unit PCB (2).
Replace indoor
unit PCB (2).
Replace fan motor.
Replace
fan motor
and indoor PCB (2).
Does fan rotate
smoothly?
Does it rotate?
Is rotation
number command
pulse generated?
Is motor
control power
voltage DC 16V
generetad?
Is motor
power voltage DC
200V generated?
Is motor
control power
voltage DC 15V
generated?
Is
rotation
number command
voltage DC 5V
generated?
Is rotation
number command
pulse generated?
Turn off power supply
and rotate fan by hand.
Turn power ON and
operate fan.
Stop fan motor.