4-36 Samsung Electronics
4-4-13 Current sensor error/Input current sensor error
1.Checklist :
1) Is the PFC Shunt(PF2:R062,R063,PF3:R807,R808,R809) resistance value correct? Check the resistor is opened
2) Is the IPM Shunt(PF2:R451,R452,R453,PF23:R413,R414,R415) resistance value correct? Check the resistor is opened
3) Is there no short or open around IC451(PF2) or IC451,IC452(PF3)?
2. Troubleshooting procedure
Exchange the Outdoor PBA
No
Is the PFC shunt and IPM shunt resistance
value correct?
No
Terminate the service
Is the current sensor error appeared again?
Exchange the Outdoor PBA
Restart after power off.
Yes
Yes
Yes
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