Daikin E-Series Service Manual page 286

SiENBE18-621
Troubleshooting
Check No.01
Turn off power supply and
Refer to P.278
Check No.02
Refer to P.278
Turn power ON and
operate fan.
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
rotate fan by hand.
NO
Does fan rotate
smoothly?
YES
Turn off power supply and
NO
disconnect fan motor
Does it rotate?
connector, then turn
power ON.
YES
Turn off power supply and
disconnect fan motor
connector, then turn
power ON again.
Stop fan motor.
Check No.01
Check output of fan
motor connector
Is rotation
NO
number
command pulse
generated?
YES
Check No.01
Check output of fan
motor connector
Is motor power NO
voltage DC 200V
generated?
YES
Is motor control
NO
power voltage DC
15V generated?
YES
Check No.01
Check output of fan
motor connector
Is rotation
YES
number command
voltage DC 5V
generated?
NO
Check No.01
Check output of fan
motor connector
Is rotation
NO
number
command pulse
generated?
YES
Troubleshooting for RA Indoor Unit
Check No.02
Check output of indoor
unit PCB (1)
Is motor control
NO
power voltage DC
16V generetad?
YES
Replace fan motor.
Replace indoor
unit PCB (1) .
Replace indoor
unit PCB (1) .
Replace indoor
unit PCB (2) .
Replace fan motor.
Note : Motor may
break when
the motor
connector is
disconnected
while
remaining
power supply.
Replace fan motor
and indoor PCB (2) .
Replace indoor
unit PCB (2) .
Replace fan motor.
Replace indoor
unit PCB (2) .
(R1214)
275