Samsung NS140HHXEA Service Manual page 55

4-6-10 DC-Link voltage sensor error
1. Checklist :
1) Is the connection of R, S, T power wire normal?
2) Are Relay RY21 and R200 on the INVERTER PCB mounted normally?
2. Troubleshooting procedure
Are connection of the wire from INVERTER PBA to
EMI PBA normal?
Exchange INVERTER PCB
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No
Yes
Check and correct the wire connection
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