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Troubleshooting
(7) Running Current of Compressor
● Inverter Primary Current
The inverter primary current is estimated from the running current of the compressor MC1 indicated on 7-segment.
● Indicated Running Current of Compressor MC2
The running current of the compressor MC2 is detected by current sensor. (CT2)
● Cause of Inverter Stoppage (Check Item “ ”)
● Cause of Fan Controller Stoppage (Check Item “ ”)
Code Cause
1 Driver IC Error Signal Detection
2 Instantaneous Overcurrent
3 Inverter Temp. Increase
4 Electronic Thermal Activation (Inverter Overcurrent)
5 Voltage Decrease
6 Voltage Increase
7 Abnormal Inverter Transmission
8 Abnormal Current Sensor
9 Instantaneous Power Failure Detection
11 Micro Computer Reset
12 Earth Fault Detecting of Comp.
13 Abnormal Power Source Phase
16 Inverter Retry
21 Abnormal Compressor Motor
Code Cause
1 Driver IC Error Signal Detection
2 Instantaneous Overcurrent
3 Inverter Temp. Increase
4 Electronic Thermal Activation(Inverter Overcurrent)
5 Voltage Decrease
6 Voltage Increase
7 Abnormal Inverter Transmission
8 Abnormal Current Sensor
9 Instantaneous Power Failure Detection
11 Micro Computer Reset
12 Earth Fault Detecting of Fan.
15 Reverse Driving
16 Fan Controller Retry
17 Abnormal Control
21 Abnormal Fan Motor
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