Outdoor Fan Pcb Overvoltage / Low Voltage Error - Samsung AM007FN1DCH/AA Service Manual

System airconditioner

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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?

Is Inverter PCB CN15

Replace Fan PCB

Connection and then restart it

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