Outdoor Fan Pcb Overvoltage / Low Voltage Error - Samsung AM009FN1DCH/AA Service Manual

Troubleshooting

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
and Fan PCB CN11 DC-Link voltage connection
wire accurately connected?
4-106
Power Off
Is Inverter PCB CN15
Yes
Replace Fan PCB
No
Connection and then restart it
Samsung Electronics