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■ Error due to over voltage / low voltage of inverter PBA 1. (E-466)
Outdoor unit Display
Judgement Method
Cause of problem
Power Off
380V is the voltage
between terminal
blocks R , S, T wire?
Did the EMI PCB Fuse
Replace Fuse, if the rectifier diode of the inverter
PCB is normal.
Samsung Electronics
• N-phase wiring error and EMI Fuse short.
• DC-Link Overvoltage / Low voltage occurs.
• Check the input wiring
• EMI Fuse short
Yes
is short?
Yes
E-466
No
Remove foreign objects
*Cold heat sink assembly defect occurs.
No
Replace Inverter PCB and then restart it.
* Check the 3 -phase sensing circuit part.
Troubleshooting
4-57
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