Samsung AM018KNQDCH/TC - Outdoor Fan PCB Overvoltage; Low Voltage Error

Troubleshooting
406 Samsung Electronics
4-4-83 Outdoor Fan PCB Overvoltage / Low voltage error
Outdoor unit display
Judgment Method
 N-phase wiring error and EMI Fuse short.
 DC-Link Overvoltage / Low voltage occurs.
Cause of problem
 Check the input wiring
 EMI Fuse short
Power Off
Ye s
Is Inverter PCB CN15
and Fan PCB CN11 DC-Link voltage connection
wire accurately connected?
Connection and then restart it
No
Replace Fan PCB
1.
Cause of problem