Samsung Dryer 9C1 Error Code
Abnormal supply voltage. Here is what it means and how to clear it, easiest fix first.
The voltage reaching the dryer is not what it expects. Shared circuits, extension cords, an incorrectly installed power cord on electric models, or a dryer used in a country with a different power grid can all cause it.
Samsung groups 9C1, 9E, 2E and 9E1 as voltage errors. On a washer and dryer stacked with a multi-control kit, the washer can show 9C1 if the dryer is operated within 5 seconds of turning the washer on; Samsung says a SmartThings software update fixes this.
How to fix Samsung 9C1
Plug in directly
Make sure the dryer is on its own circuit and plugged straight into the wall, not into an extension cord or adapter. If water is near the outlet or cord, switch off the breaker instead of touching the plug.
Check the installation (electric dryers)
If the dryer was recently installed or the power cord changed, ask the installer to confirm the cord was fitted correctly. Do not open the terminal block cover while the dryer has power.
Stacked pairs: update the software
If you use a multi-control kit, add the dryer to the SmartThings app and install any available update. The dryer is unresponsive for about 20 minutes during the update.
When to call a technician
If the error continues, have a licensed electrician check the outlet voltage, then book a dryer repair if the supply is correct.
Parts that commonly cause 9C1
- power cord
- terminal block
- main control board
Order parts by your exact model number so they fit.
Other Samsung dryer codes
- hEHeating error
- HC2Gas ignition error (gas dryers)
- tSTemperature sensor fault
- dEDoor not detected as closed
- ClgVent clogged (vent test result)
- C1Vent test could not run
- bEStuck button on the control panel
- ACInternal communication error
- FCPower frequency out of range
- oDDry time too long
- 3CMotor error
- dnSoftware download in progress
- CLChild Lock is on
Frequently asked questions
What does 9C1 mean on a Samsung dryer?
The voltage reaching the dryer is not what it expects. Shared circuits, extension cords, an incorrectly installed power cord on electric models, or a dryer used in a country with a different power grid can all cause it.
Can I fix Samsung 9C1 myself?
Often. The first steps above are safe checks a homeowner can do. If they don't clear 9C1, the cause is likely a worn part that needs replacing.
What if 9C1 keeps coming back?
A code that returns after a reset and the checks above usually means a part is wearing out. Note when 9C1 appears (which cycle, how often) and have your model number ready; it helps a technician bring the right part on the first visit.
Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.