Service Manual 177
Troubleshooting Guide
Low voltage in the
fan motor
Error
Code
Error Contents Meaning Main Causes
Error display
position
107
Low voltage in the fan
motor
Concerned
Remote
Controller
Outdoor
Unit
1. Defective fan PCB DC link voltage
lead wire connection
2. Abnormal fan PCB Capacitor
3. Abnormal fan PCB input power
4. Fan PCB defect
■ Defect inspection method
1) Check the fan PCB DC link voltage lead wire connecting condition .
2) Check Fan PCB input power voltage (normal : rated ± 10%)
3) Check whether the fan PCB Capacitor ahs any abnormality.
In case it is abnormal then outer shape is deformed (outer shape expansion).
4) In case of Capacitor abnormality replace the fan PCB .
5) In case the error code exists even after the PCB replacement then replace the fan IPM PCB
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