Error code
9CA1
Meaning
The compressor is getting incorrect voltage
Critical
What to do
Why this happens
Possible causes include under or over voltage supply to the dryer, use of a plug receptacle causing voltage drop, or occasionally a main PBA fault.
How to fix it
If the breaker is fine, this one needs a professional technician to check the internal power systems.
SourceSamsung service manual / Customer Repair Guide