Samsung AM007FN1DCH/AA - Inverter Overcurrent Error

Troubleshooting
4-108 Samsung Electronics
4-4-75 Inverter Overcurrent error
Outdoor unit display
(INVERTER1 PCB)
(INVERTER2 PCB)
Judgment Method
 Will occur if the overcurrent flowing in the IPM.
 Detected by H/W or S/W
Cause of problem
 Installation defective
 Comp. defective
 PCB defective
 Connection wire error
 Motor defective
Power Off
Continue
Ye s
Is the outdoor unit installed properly?
Remove the obstacles and check
the status of the installation.
No
Ye s
Is temperature
sensor location and the measurement
value normally?
Power Off, and then replacement
or correction of the sensor location
No
Ye s
Is the resistance value
between phase of Compressor wire
(U-V, V-W, W-U) less than 2?
Replace Compressor
No
Ye s
Is the resistance between
the body of Compressor and
chassis M?
Replace Compressor
No
Ye s
Does the Compressor
connection wire properly connect
to the compressor?
Check the connection wire
(Check the status of the connection UVW)
No
1.
Cause of problem