Samsung Electronics 142
Troubleshooting
Check AC Voltage of Power source
No
Yes
Check AC Voltage
of the Power terminal?
[Refer to Standard AC Voltage ]
Yes
Check DC voltage of
DC LINK connector disconnect from FAN PBA
[Refer to Standard DC Voltage]
Yes
Yes
Yes
Check the status of DC LINK Connector
Replace connected wire
Replace Compressor
Replace Compressor
Replace FAN PBA
Power Off
(If the voltage is out of Std. range)
(If the voltage is out of Std. range)
Is the resistance value between different phases
of Compressor(U ↔ V, V ↔ W, W ↔ U) less than
Is the resistance between the body of
No
No
No
No
Power On
4-3-51 Outdoor Fan PBA Overvoltage / Low voltage error (cont.)
4-3 Appropriate Measures for Different Symptom (cont.)
DC power wire (INV PCB)
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