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Troubleshooting
Input / Output Current sensor error
✳✳
AM038/048/055KXWD
Outdoor unit display
Judgment Method
∙ Sensor Output detection : Judged as an error if the detected value is more than 2.8V or 0.2V less than
∙ Defective Input voltage
Cause of problem
∙ Defective PCB voltage sensing circuit
1. How to check
Is power connection accurately connected?
4-110
(cont.)
INVERTER1 PCB (Input current sensor)
INVERTER1 PCB (Output current sensor)
Power off
Yes
E485 or E385?
E468 or E368?
Replace inverter PCB
No
Power cable re-connection
Samsung Electronics
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