Troubleshooting
4-66 Samsung Electronics
4-3-49 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
Yes
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
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