Samsung AR18NSFPEWQNEU Service Manual page 75

10-2-18 Current sensor error/Input current sensor error
Indoor display
3-LED DISPLAY
LED1 LED2
Outdoor display
LED ON LED BLINKING
1. Checklist :
1) Is the PFC Shunt( "R701,R702") resistance value correct? Check the resistor is opened
2) Is the IPM Shunt("R410,R411") resistance value correct? Check the resistor is opened
3) Is there no short or open around "IC451" ?
2. Troubleshooting procedure
Rest
Is the PFC shunt and IPM
shunt resistance value correct?
Is the current sensor error appeared again?
Exchange the Outdoor PBA
Samsung Electronics
7-SEG DISPLAY
LED3
LED OFF
YES
YES
E462 AC Input I_Limit Trip Error
Current sensor error
Input current sensor error
NO
Exchange the Outdoor PBA
NO
Terminate the service
DESCRIPTION
10-21