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Troubleshooting
SiBE041213E
61
Service Diagnosis
Troubleshooting
Check No.02
Refer to P.93
Turn off the power supply
and disconnect the fan
motor connector, then
turn the power on.
Check No.02
Check the output of the
fan motor connector
YES
YES
NO
YES
YES
NO
NO
NO
Note: The motor may break when the
motor connector is disconnected
while remaining power supply.
(Turn off the power supply before
connecting the connector also.)
Caution
Replace the indoor
fan motor.
Replace the indoor
unit PCB.
Replace the indoor
unit PCB.
Does the fan
rotate smoothly?
Does the fan
rotate?
Is the
motor power
supply voltage
310 ~ 340 VDC
generated?
Is the motor
control voltage 15
VDC generated?
Turn off the power supply
and rotate the fan by
hand.
Turn the power on and
start operation.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Check No.02
Check the output of the
fan motor connector
(R18469)
NO
YES
YES
NO
YES
NO
Replace the indoor
fan motor.
Replace the indoor
unit PCB.
Replace the indoor
unit PCB.
Replace the indoor
fan motor.
Replace the indoor
fan motor and the
indoor unit PCB.
Is the rotation
pulse generated?
Is the
rotation
command voltage
1 ~ 5 VDC
generated?
Is the rotation
pulse generated?
Stop the fan motor.
Correct the power
supply.
NO
YES
Check the power supply
voltage.
Is the
voltage fluctuation
within ±10% from the
rated value?
Summary of Contents for FTXS35K2V1B
Page 12: ...SiBE041213E 1 List of Functions Part 1 List of Functions 1 Functions 2...
Page 14: ...SiBE041213E 3 Specifications Part 2 Specifications 1 Specifications 4...
Page 59: ...SiBE041213E Remote Controller 48 Part 5 Remote Controller 1 Remote Controller 49...
Page 129: ...Revision History Month Year Version Revised contents 05 2013 SiBE041213E First edition...