Samsung AC026JNNCEH Service Manual page 58

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
Restart after power off.
Yes
No
Exchange the Outdoor PBA
Is the PFC shunt and IPM shunt resistance
value correct?
Yes
No
Terminate the service
Is the current sensor error appeared again?
Yes
Exchange the Outdoor PBA
Samsung Electronics 4-39