Dc Voltage Sensor Error Of Inverter Pba 1. (E-469) - Samsung AM053FXMDCH Service Manual

3-20. DC voltage sensor error of inverter PBA 1. (E-469)

Outdoor unit Display
Judgement Method
Cause of problem
Is Power connection
accurately connected?
Is Reactor accurately
connected?
Did the Fuse is short?
Is EMI PCB and
Inverter PCB accurately connected?
Is Inverter PCB and
Fan PCB DC -Link voltage connection wire
accurately connected?
Replace Inverter PCB.
54
or 0.2V less than.
Power Off
Yes
Yes
Yes
Yes
Yes
E-469
No
Power Cable re-connection.
No
Check the Reactor connection.
No
No
Power Off and then re-connection.
No
Replace Fuse.
Replace Fan PCB.
Samsung Electronics