Usually indicates that the washer has detected an unbalanced laundry load.
officialSource: officialLast verified: 2026-06-24Can use appliance: limited
What to check first
Can I keep using it?
Do not bypass locks or latches
Do not bypass a door, lid, latch, or lock sensor to keep the appliance running.
Safe next step
Check only visible obstructions, let hot appliances cool, and use the manual before any access step.
Stop when
The door will not lock or unlock normally, parts look damaged, or the appliance could run with the door unsecured.
Safety boundaries
Safe first
Match the exact brand, appliance type, and displayed code first.
Use the model manual as the final authority for access steps.
Do not do this
Do not use other cycles as a workaround unless the manual allows it.
Do not bypass locks, float switches, leak sensors, or other safety systems.
Common causes include
Laundry tangled or bunched on one side
Washer not level
Load too small or too heavy for balanced spin
Basic checks
Pause the cycle if safe.
Untangle and redistribute the laundry.
Check the user manual if the display shows dC, because Samsung model meanings can differ.
Reset or retry steps
After balancing the load, close the door and restart the cycle only if the washer is stable.
When to call a technician
Call service if the code repeats with balanced loads.
Call service if the washer moves, bangs, or cannot spin normally.
FAQ
What does Samsung Washer code Ub usually mean?
Usually indicates that the washer has detected an unbalanced laundry load.
Can I keep using the washer with code Ub?
Limit use to the owner-level checks described here and in the model manual. Stop using the appliance if the code returns, the appliance behaves abnormally, or a safety warning applies. Do not reach into a moving drum.
When should I call a technician for Samsung Ub?
Call service if the code repeats with balanced loads. Call service if the washer moves, bangs, or cannot spin normally.
