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Troubleshooting
Si01-406
92
Service Diagnosis
Troubleshooting
Check No.01
Refer to P.115
Replace fan motor.
Replace indoor
unit PCB.
Replace indoor
unit PCB.
Replace fan motor.
Note : Motor may
break when
the motor
connector is
disconnected
while
remaining
power supply.
Replace fan motor
and indoor PCB.
Replace indoor
unit PCB.
Replace fan motor.
Replace indoor
unit PCB.
Turn off power supply
and rotate fan by hand.
Turn power ON and
operate fan.
Turn off power supply
and disconnect fan motor
connector, then turn
power ON.
Check No.01
Check output of fan
motor connector
Is motor
power voltage
DC 200V
generated?
Is motor
control power voltage
DC 15V
generated?
Turn off power supply and
disconnect fan motor
connector, then turn
power ON again.
Does it rotate?
Stop fan motor.
Is rotation
number command pulse
generated?
Is rotation
number command pulse
generated?
Check No.01
Check output of fan
motor connector
Check No.01
Check output of fan
motor connector
Check No.01
Check output of fan
motor connector
Is rotation
number command
voltage DC 1~6V
generated?
Does fan rotate
smoothly?
(R3098)
YES
YES
NO
YES
YES
NO
YES
NO
NO
YES
NO
YES
NO
NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Summary of Contents for FT25CV1A
Page 7: ...Si01 406 vi Table of Contents...
Page 15: ...Functions Si01 406 4 List of Function...
Page 21: ...Specifications Si01 406 10 Specifications...
Page 205: ...Wiring Diagrams Si01 406 194 Appendix...
Page 209: ...Si01 406 iv Index...