Troubleshooting
Samsung Electronics 4-37
■ Output current sensor error of Fan2. (E-393) /
Output current sensor error of inverter PBA 1. (E-468) /
Error due to input current of inverter 1. (E-485) /
Output current sensor error of Fan1. (E-493)
Outdoor unit Display E-378 / E-389 / E-478 / E-489
Judgement Method
•SensorOutputdetection:Judgedasanerrorifthedetectedvalueismorethan
2.8V or 0.2V less than
Cause of problem
•Inputvoltagedefective
•PCBvoltagesensingcircuitdefective
Power Off
Is Power connection
accurately connected?
Yes
No
Power Cable re -connection
E -393 / E -493 E -468 / E -485
Replace Inverter PCBReplace Fan PCB