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SiUS091133 Troubleshooting
Service Diagnosis 102
Troubleshooting
Check No.04
Refer to P.143
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
(R16009)
Caution
Replace the fan motor or the
indoor unit PCB.
Replace the fan motor.
Replace the indoor unit PCB.
Replace the capacitor.
(Replace the indoor unit PCB.)
Replace the fan motor.
Replace the fan motor.
Replace the indoor unit PCB.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
∗ Measure the voltage
between the red and black
lead wires of the fan motor,
and check if the maximum
voltage reaches the rated
voltage.
Check No. 04
Check Hall IC
Is there an output?
Check the fan motor voltage.
Voltage as rated? ∗
Start operation.
Does the fan rotate?
Turn off the power supply and
rotate the fan by hand.
Does the fan rotate
smoothly?
Turn the power on and check the
fan motor voltage. (immediately
after restart)
Voltage as rated? ∗
Check the capacitor's continuity.
Is there continuity?
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