Samsung DVM S ECO BIG Series Service Manual page 98

Troubleshooting
■ Error due to operation failure of inverter compressor 1. (E-464)
Outdoor unit Display
Judgement Method
Cause of problem
Power Off
Is the outdoor unit
installed properly?
Is temperature
sensor location and the
measurement
value normally?
Is the resistance
value between different
phases of compressor
(U ↔ V, V ↔ W,W ↔ U)
less than 2Ω?
Is the resistance
between the body of
Compressor and
chassis MΩ?
Does the Compressor
connection wire
properly connect
to the compressor?
Replace Inverter PCB.
4-56
• Will occur if the overcurrent flowing in the IPM.
• Detected by H/W or S/W.
• Installation defective.
• Connection wire error.
• Comp. defective.
• Motor defective.
• PCB defective.
Yes
Yes
Yes
Yes
Yes
E-464 / E-465
No
Remove the obstacles and check the status of the
installation.
No
Power Off, and then replacement or correction of
the sensor location.
No
Replace Compressor.
Yes
Replace Compressor.
Yes
Check the connection wire
(Check the status of the connection U V W )
Yes
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