Samsung AM032MNQDCH/AA Service Manual page 323

4-4-81 Outdoor Fan PCB Overvoltage / Low voltage error
Outdoor unit display
∙ N-phase wiring error and EMI Fuse short.
Judgment Method
∙ DC-Link Overvoltage / Low voltage occurs.
∙ Check the input wiring
Cause of problem
∙ EMI Fuse short
1. Cause of problem
Is Inverter PCB CN15
and Fan PCB CN11 DC-Link voltage connection
wire accurately connected?
Replace Fan PCB
Samsung Electronics
Power Off
Yes
No
Connection and then restart it
Troubleshooting
4-123