Samsung washer 9C1: Supply-voltage warning

Documentation checkedBy ErrHiveUpdated October 28, 2026

THE SHORT ANSWER

Supply-voltage warning.

9C1 is in Samsung’s supply-voltage error group. Check the external power arrangement before asking a technician to assess the washer.

First safe check

Confirm the washer uses its intended wall connection without an extension lead.

Applies to

Samsung washer families covered by the cited US guidance. Match the full model number and exact display; this is not an exact-model compatibility claim.

Before you start

Keep hands clear of a moving drum. Do not force a locked door or work on live wiring. Stop if water reaches an electrical connection.

Go to safe checks

WHAT YOU MAY NOTICE

Symptoms to record

The washer displays 9C1.

WORK THROUGH THE BASICS

Safe troubleshooting checks

0 of 2 checked

Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.

Review the connection
Check that the washer has its specified circuit and that the plug and cord are not visibly damaged.
What to note
The installation matches the owner instructions.
Escalate a repeat warning
If the code persists on the proper supply, report it to Samsung. Electrical measurements belong to a qualified person.
What to note
A professional can distinguish supply trouble from an appliance fault.

THE DETAILS MATTER

Scope & troubleshooting notes

How to interpret this result

Do not transfer voltage or outlet requirements from a model sold in another country. A display alone does not establish whether the problem is upstream of the appliance or inside it.

YOUR NEXT DECISION

When to stop and get help

Arrange Samsung service if the condition remains after the listed owner checks, or if damage prevents completing them safely.

Record what you see

Keep the full model number, exact displayed code, and your observations together for the next conversation.

Use the right support

Contact the manufacturer or a qualified appliance technician when the guide calls for service.

Samsung support

THE EVIDENCE

Sources & verification

Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.

Samsung washing machine information and error codes
Samsung US · Manufacturer support · Checked Oct 28, 2026
4C; 5C; SUd; Ub; model-dependent dC — Samsung US washers; model-specific code variants exist
Samsung Washing Machine Error Codes
Samsung · Manufacturer support · Checked Oct 28, 2026
Motor, sensor and voltage errors — Samsung Australia cross-reference, restricted to groups also listed in Samsung US support.

ErrHive is an independent information resource, not an authorized representative of Samsung. Follow your appliance’s manual. Hazardous repairs belong with qualified professionals. Read our safety policy.