Samsung AM032MNQDCH/AA Service Manual page 315

4-4-73 : Compressor Excess Current Error
Outdoor Unit Display
×(Operation)
Indoor Unit Display
∙ Error displayed if the CT sensor value of the relevant compressor is 20A or more and is maintained for
Judgment Method
more than 3 seconds.
Special Cause ∙ Breakdown of compressor/Faulty CT sensor
1. Inspection Method
Is the CT sensor connector
resistance normal?
Are all the CT values 0 when
the compressor is stopped?
Test Operation
Is the measured value
from the separate ammeter the
same as the CT sensor value?
measured at 20A or more during
Inspection Complete
Samsung Electronics
(Reservation)
Yes
Yes
Yes
Is the CT value
the operation?
No
(Blast) (Filter) ×(Defrost)
No
Change CT sensor.
No
Change CT sensor.
Connect a separate ammeter
No
Change CT sensor.
Yes
Breakdown of Compressor: Change
compressor.
Troubleshooting
(optional).
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