Troubleshooting
4-102 Samsung Electronics
Outdoor unit display
(INVERTER1 PCB)
Judgment Method
Will occur if the overcurrent flowing in the IPM.
Detected by hardware or software.
Cause of problem
Defective installation
Defective compressor
Defective PCB
Connection wire error
Defective motor
Power off
Continue
Yes
Is the outdoor unit installed properly?
Remove the obstacles and check the status of the
installation
No
Yes
Is temperature sensor location and the
measurement value normally?
Power off, and then replacement or correction of
the sensor location
No
Yes
Is the resistance value between different
phases of compressor (U-V, V-W, W-U)
less than 2?
Replace compressor
No
Yes
Does the compressor connection wire properly
connect to the compressor?
Check the connection wire
(Check the status of the connection UVW)
No
1. How to check
غ
AM038/048/055KXWD✳✳
Inverter Overcurrent error (cont.)
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