Troubleshooting
Samsung Electronics 4-45
4-3-18 DC LINK over-current / low-voltage error (Error Code : E466)
H/W DC_Link Over Voltage Error (Error Code : E483)
AC Input Voltage Sensor Error (Error Code : E488)
1. Test items
1) Check the power connection. / Check the restart after power reset.
2) Check the connection of the power, and check whether the jointed power connection exists.
3) Check the reactor and its connecting wires.
4) Check the fuses of EMI PBA.
5) Check the Terminal Block and Power Terminal Box and the wire assembly.
2. Check procedure
Yes
Reconnect the power wire.
No
Is the power wire correctly connected?
1. Check the connecting wires. (between the
reactor wire and the Inverter PCB wire
No
Power OFF
Yes
Check the reactor and
its connecting wires.
1. Is the wire between the reactor and
the Inverter PCB of the outdoor unit correctly
c
onnected?
2. Is there any fault such as scratch,
pressing, broken or
loosened terminal?
1. Fasten the screws between Terminal
2. Connect the terminal of the Power
Replace the fuse.
Yes
Yes
No
After replacing the Inverter PCB of the
outdoor unit, check for normal startup.
Check the Terminal Block
and Power Terminal Box.
1. Is the screw of the terminal block firmly Fastened?
2. Are the power wire of the Power Terminal Box and
terminal firmly assembled?
Is EMI PCB fuse defective?
Yes
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