Error code
9C1
Meaning
Your dryer is getting the wrong voltage from the outlet
Critical
What to do
Why this happens
Possible causes include an improperly connected power cord, a malfunctioning electrical outlet with voltage out of range, or a faulty main PCB.
How to fix it
Make sure the power cord is firmly plugged in and the breaker is on. If the error persists, you may have a wiring issue — have an electrician check the outlet.
SourceSamsung service manual / Customer Repair Guide