Samsung AVXC1H022 series Service Manual page 271

Troubleshooting
I
: Compressor Low Current Error
Outdoor unit display
Indoor unit display
Judgment method
Causes
1. Check Method
operated even though the Magnetic Contactor is
9-27
No display
When the CT sensor value of the relevant compressor is maintained for over 10 minutes at over
4A, the error is displayed.
Compressor break / CT sensor defect / OLP Trip
Is the CT sensor connector
resistance normal?
Yes
Is the CT value when
compressor is stopped all 0?
Yes
Test operation
Is the compressor not
contacted?
Yes
Is the CT value measured below
4A during operation?
No
Is the CT value measured below
4A during operation?
No
Complete the check.
No
Replace the CT sensor.
No
Replace the CT sensor.
Connect the separate
ampere-meter. (Optional)
No
Replace the CT sensor.
Check the Magnetic Contactor
and whether OLP Trip.
Yes
If the compressor break is
judged, replace the compressor.
If compression is achieved
smoothly during the relevant
Yes
compressor operation, there is
no error. If compression is not
achieved, the compressor is
broken.
Samsung Electronics