Samsung Dryer Error Code 9C1
Power supply error — abnormal/low line voltage
The dryer measured incoming voltage outside its safe window. The most common triggers are an extension cord, a power strip, or sharing a circuit — all of which sag the voltage under the dryer's load. On stacked washer/dryer kits, trying to control the dryer within ~5 seconds of powering the washer can also report 9C1.
What Does Error Code 9C1 Mean on a Samsung Dryer?
Power supply error — abnormal/low line voltage.
The dryer measured incoming voltage outside its safe window. The most common triggers are an extension cord, a power strip, or sharing a circuit — all of which sag the voltage under the dryer's load. On stacked washer/dryer kits, trying to control the dryer within ~5 seconds of powering the washer can also report 9C1.
What Causes Error Code 9C1?
Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:
- 1 Extension cord or power strip in use 40% of cases
- 2 Shared/overloaded circuit 25% of cases
- 3 Loose or worn outlet 20% of cases
- 4 Control board voltage-sensing fault 15% of cases
How to Fix Samsung Dryer Error Code 9C1
- 1
Plug directly into the wall
Remove any extension cord/power strip — the dryer needs a dedicated grounded outlet.
- 2
Check the circuit
Confirm the dryer is on its own circuit and the breaker isn't shared or undersized.
- 3
Verify outlet voltage
Have an electrician confirm steady voltage at the outlet under load.
How to Reset Error Code 9C1
Plug directly into a dedicated wall outlet (no extension cord/strip), then restart.
Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.
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When to Call a Professional
If outlet voltage is confirmed correct but 9C1 persists, the control board's voltage-sensing circuit has failed.
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Frequently Asked Questions
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Sources & References
- • Samsung Support — Error Codes — official manufacturer documentation
- • Our editorial & verification policy
Content verified against manufacturer service documentation. Last verified: June 14, 2026.