Samsung washer UB code: what it means and how to fix it

By Daniel Brooks Home maintenance writer and appliance troubleshooting specialist based in Charlotte, NC

Quick answer

UB on a Samsung washer signals an unbalanced load, the same underlying issue as the UR code, shown as UB instead on certain model lines. Here's how to fix it, and why the two codes sometimes get confused with each other on the display itself.

Safety first

Unplug the washer before checking the suspension or leveling feet, and before reaching anywhere near the drum.

What UB means

Code	What it means	Common causes	What to check
UB	Unbalanced load, displayed as UB rather than UR on certain Samsung model generations	Uneven load distribution, a single bulky item, washer not level, worn suspension	Redistribute the load, check for a single oversized item, confirm the washer is level, inspect suspension if it recurs

Samsung's own regional support content groups UB with its other balance-related codes rather than treating it as an isolated fault (Samsung UE/UB troubleshooting).

Work through it in order

Redistribute the load

Pause the cycle, open the door, and spread the clothes evenly around the drum. This alone clears most UB cases.

Check for a single bulky item

A comforter, a pillow, or a bath rug can't distribute evenly no matter how it's arranged. Wash it alone or with a couple of towels.

Confirm the washer is level

Set a level on top of the machine. If it rocks or leans, adjust the feet until it sits flat and doesn't shift when you push on a corner.

Check the suspension

If UB keeps appearing on properly balanced, appropriately sized loads, the drum suspension springs or shock absorbers may be worn. That's a repair, not something a rebalanced load fixes.

Why some Samsung models show UB instead of UR

There's a genuinely practical reason this confuses people beyond the fault itself. On some digital displays, a lowercase "b" can be misread as a "6" or an "R", which is part of why UB and UR get mixed up in conversation as often as they do on the machine. The underlying sensor system and the fix are the same either way: redistribute, check for a bulky item, confirm level, then suspension if it recurs. If your manual or Samsung's support lookup shows the more common form of this same unbalanced-load code for your exact model, that's the version to search going forward.

When to call a technician

Call a technician if UB persists after two or three properly rebalanced, level attempts, or if the washer rocks or bounces excessively during spin even with light loads.

Photos for this guide

Samsung washer display showing the UB unbalanced load error code. — Real photo of a Samsung washer display showing the UB code (blurred/unreadable per the project's photo style).

Checking that a Samsung washer is level to help clear a recurring UB error. — Real photo of a bubble level placed on top of a Samsung washer.

FAQ

What does UB mean on a Samsung washer?

UB signals an unbalanced load, the same fault UR reports on most Samsung washers, just shown as UB on certain model generations. Redistributing the load and checking that the washer is level clears it in most cases.

Is UB different from UR on a Samsung washer?

The underlying fault is the same, uneven weight distribution detected by the same sensor system, just displayed differently depending on the washer's model generation. Treat the fix the same way you would for UR.

My Samsung washer shows UB even with a balanced load. What's causing it?

If UB returns on a load that looks evenly distributed, check that the machine itself is sitting level. An unlevel washer can trigger the code regardless of how the laundry is arranged, and persistent UB on a level, balanced load points to worn suspension components.

Can a single heavy item trigger UB?

Yes. A single bulky, water-absorbing item like a comforter or bath rug is one of the most common triggers, since it can't distribute evenly around the drum no matter how it's placed. Washing it alone or in a smaller load usually resolves it.

For the complete Samsung washer code list, including the codes for a drain error or a water-supply problem, see the hub page.