9c1
Moderate
Samsung · Washing Machines
Voltage error - electrical supply irregularity detected
Quick Answer
Error code 9C1 on your Samsung Washing Machines means: Voltage error - electrical supply irregularity detected. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Household voltage is too low or fluctuating
  2. Washer is connected via an extension cord
  3. Washer is sharing a circuit with other high-power appliances
  4. Washer used in a country with incompatible power grid specifications
How to Fix It
1
Confirm the washer is plugged directly into a wall outlet (no extension cord)
2
Ensure the washer is on its own dedicated electrical circuit
3
Check the household voltage at the outlet with a multimeter (should be within 110-120V for US models)
4
If voltage is consistently low, consult an electrician
5
Unplug the washer for 2-3 minutes and retry
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
None usually required
Dedicated circuit installation (if sharing a circuit)
Related Error Codes
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