ERROR CODEUbDiagnostic reference

Samsung · Washing machines

Samsung Washer Ub Error: Load Balance and Spin Checks

THE SHORT ANSWER

The load is unbalanced for spinning.

Ub is an unbalanced-load warning. Pause and rearrange the laundry before retrying the spin. If the washer never spins at all, a separate drainage or service issue may need attention.

First safe check

Wait for the drum to stop, then untangle and spread the load.

Applies to

Samsung US washers; do not automatically treat dC as an imbalance code.

Before you start

Do not reach into a moving drum or force a locked door. Keep clear if the appliance shakes violently.

Go to safe checks

WHAT YOU MAY NOTICE

Symptoms to record

  • The spin stage does not complete
  • The load is concentrated on one side

UNDERSTAND THE POSSIBILITIES

Causes & useful observations

A code identifies a condition. It does not, by itself, confirm which part needs repair.

Possible causes, observable symptoms, safe checks, and service boundaries
Possible causeWhat to look forSafe check / next step
Unbalanced laundryTangled or uneven loadRearrange the laundry.
A separate drain problemWater remains and spinning never startsInvestigate drainage using the proper guide.

WORK THROUGH THE BASICS

Safe troubleshooting checks

0 of 3 checked

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

  1. Untangle the load and spread items more evenly; close the door and restart normally.

    What to note

    Observe whether the spin completes.

  2. If the drum never turns at all, first note whether water is draining.

    What to note

    Use the no-drain guide if water remains.

  3. Note whether the warning happens with different loads.

    What to note

    Repeated faults need model-specific support.

THE DETAILS MATTER

Scope & troubleshooting notes

Avoid ambiguous code matching

Samsung documents different meanings for dC on different models. Do not substitute dC for Ub without checking the manual.

YOUR NEXT DECISION

When to stop and get help

Request help if the issue persists after safe load and installation checks.

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

DOCUMENTED COMPATIBILITY

Verified model relationships

These exact models have a documented relationship to this code. An unlisted model is not automatically compatible.

THE EVIDENCE

Sources & verification

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

  1. Samsung washing machine information and error codes

    Samsung US · Manufacturer support · Checked

    4C; 5C; SUd; Ub; model-dependent dC — Samsung US washers; model-specific code variants exist

  2. Samsung washer does not spin at all

    Samsung US · Manufacturer support · Checked

    Drainage before spinning; pump filter; calibration — Samsung US washing machines; this page is for no spin at all

  3. Samsung washing machine spins poorly

    Samsung US · Manufacturer support · Checked

    Spin troubleshooting; drainage prerequisite; pump filter — Samsung US washing machines

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.