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Samsung Washing Machine Error Code 9C1

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 14, 2026
⚠ Medium Severity 🔧 Easy DIY Also shown as: 9C, 2E

Power supply error — abnormal/low line voltage detected

The control measured the incoming voltage outside its acceptable window — usually low voltage, a brown-out, or an extension cord/loose outlet dropping voltage under load. The washer halts to protect the motor and electronics from running on bad power.

💰 DIY cost: $0–$0 👨‍🔧 Pro cost: $120–$250 Save $120+ by doing it yourself
Samsung Washing Machine error code 9C1 on the display panel
How the 9C1 code appears on a Samsung washing machine display

What Does Error Code 9C1 Mean on a Samsung Washing Machine?

Power supply error — abnormal/low line voltage detected.

The control measured the incoming voltage outside its acceptable window — usually low voltage, a brown-out, or an extension cord/loose outlet dropping voltage under load. The washer halts to protect the motor and electronics from running on bad power.

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. 1
    Low or unstable house voltage 40% of cases
  2. 2
    Extension cord or power strip in use 25% of cases
  3. 3
    Loose/worn wall outlet 20% of cases
  4. 4
    Control board voltage sensing fault 15% of cases

How to Fix Samsung Washing Machine Error Code 9C1

🔧 Easy DIY Est. time: 10–20 min
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Plug directly into the wall

    Remove any extension cord or power strip — plug the washer straight into a dedicated grounded outlet.

  2. 2

    Power cycle

    Unplug for 5 minutes, then restart.

  3. 3

    Check outlet voltage

    Have an electrician confirm a steady ~120V (or ~240V where applicable) at the outlet under load.

How to Reset Error Code 9C1

Plug directly into a wall outlet (no extension cord), power cycle, and 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 voltage at the outlet is confirmed correct but 9C1 persists, the control board's voltage-sensing circuit has failed.

Average professional repair cost for this issue: $120–$250

Related Error Codes

AE
Communication error — main and sub control boards not talking
⚠ Medium Severity

Find Replacement Parts

Use these links to find the exact replacement parts for your Samsung Washing Machine:

🔩
Search PartSelect
Samsung Washing Machine repair parts
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Search RepairClinic
Step-by-step video guides

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More Samsung Washing Machine Error Codes

4C Water supply not detected UE Unbalanced load detected OE Drain failure — water not draining LE Motor locked — drum cannot rotate DE Door not properly closed or door lock failure HE Water heater error — water not heating to target temperature

Frequently Asked Questions

What does error code 9C1 mean on a Samsung Washing Machine? +
Power supply error — abnormal/low line voltage detected
How do I fix error code 9C1 on my Samsung Washing Machine? +
Start by Remove any extension cord or power strip — plug the washer straight into a dedicated grounded outlet.. If that doesn't resolve it, work through each step in the fix guide above.
How do I clear or reset error code 9C1? +
Plug directly into a wall outlet (no extension cord), power cycle, and restart.
Is error code 9C1 serious? +
Medium severity. The appliance may still operate but the issue should be resolved to prevent further damage.

Sources & References

Content verified against manufacturer service documentation. Last verified: June 14, 2026.

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