Daikin Super Multi Plus E-Series FTXG25EV1BW Service Manual page 369

SiBE18-821_C
Troubleshooting
Check No.01
Turn off the power supply
Refer to P.360
and rotate the fan by
hand.
Turn the power on and
start operation.
Troubleshooting
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
NO
Does the fan rotate
smoothly?
YES
Turn off the power supply
NO and disconnect the fan
Does the fan
motor connector, then
rotate?
turn the power on.
YES
Stop the fan motor.
Check No.01
Check the output of the
fan motor connector
Is the
rotation number
NO
command pulse
generated?
YES
Note : The motor may break when the
Check No.01
Check the output of the
fan motor connector
Is the
motor power
NO
supply voltage
310 ~ 340 VDC
generated?
YES
Is the motor
NO
control voltage 15
VDC generated?
YES
Is the
rotation
YES
command voltage
1 ~ 5 VDC
generated?
NO
Is the
rotation number
NO
command pulse
generated?
YES
Troubleshooting for RA Indoor Unit
Replace the fan
motor.
motor connector is disconnected
while remaining power supply.
Replace the indoor
unit PCB.
Replace the indoor
unit PCB.
Replace the fan
motor.
Replace the fan
motor and the
indoor unit PCB.
Replace the indoor
unit PCB.
Replace the fan
motor.
Replace the indoor
unit PCB.
(R11293)
357