The Samsung washing machine error code Ub means the washer has detected an unbalanced load during the spin cycle. The laundry inside the drum has shifted to one side, and the washer stopped spinning to protect itself from excessive vibration. This is usually a 5-minute fix: open the door, redistribute the clothes evenly, and restart the cycle. If the code keeps returning, the washer may not be level or a suspension component may need repair.
What Does Samsung Washing Machine Error Code Ub Mean?
The Samsung washing machine error code Ub is an unbalanced load error that indicates the drum's contents have shifted unevenly during the spin cycle. Samsung washers use sensors to monitor vibration levels as the drum speeds up. When the vibration exceeds a safe threshold, the washer pauses the spin cycle and displays Ub to prevent damage to the drum bearings, suspension, and the machine's frame.
This code appears across Samsung front-load and top-load washer models. Depending on the model and display generation, the same fault may appear as UE, U6, Ur, or dc. All of these codes mean the same thing: the load is not balanced. If you need Samsung appliance repair service, the diagnostic approach is identical regardless of which variant appears on your display.
The Ub error is one of the most common codes on a Samsung washer, and it is almost always caused by how the laundry is loaded, not by a mechanical failure. A single heavy item like a comforter, a small load bunched to one side, or a mix of very heavy and very light items can all trigger the code.
Why Samsung Washing Machine Shows Error Code Ub
How to Fix Samsung Washing Machine Error Code Ub (Step by Step)
Pause the cycle and open the door
Press the Pause button to stop the cycle. On front-load Samsung washers, wait for the door lock to release (this can take a minute or two after the drum stops spinning). On top-load models, you can open the lid immediately after pressing Pause.
Redistribute the laundry evenly
Pull the clothes apart and spread them loosely around the drum. Break up any clumps of heavy items that have tangled together. If you are washing a single bulky item (like a comforter), add a few towels to help balance the weight.
Remove items if the drum is overloaded
The drum should be about three-quarters full at most. If you packed it tight, take out enough items so the laundry can move freely during the spin. Wash the removed items in a separate load.
Add items if the load is too small
A load of just one or two light items can slide to one side and trigger the Ub code. Add a few towels or similar-weight items to give the drum enough mass to spin evenly.
Check that the washer is level
Place a level on top of the washer (front to back and side to side). If the machine rocks or tilts, adjust the leveling feet at the bottom corners by turning them clockwise to lower or counter-clockwise to raise. All four feet should sit firmly on the floor with no wobble.
Check for shipping bolts (new installations only)
If the washer was recently installed, look at the back panel for large bolts with plastic spacers. These transit bolts lock the drum during shipping and must be removed before use. Your installation guide will show their exact location. Remove them with a wrench if they are still in place.
Close the door and restart the cycle
Close the door firmly and press Start to resume the cycle. The washer will attempt the spin phase again. If it completes the cycle without showing the Ub code, the issue is resolved.
If the Ub code returns after redistributing the load, leveling the washer, and confirming the shipping bolts are removed, the issue is internal. Worn shock absorbers or suspension rods are the most likely cause, and a technician will need to inspect and replace them.
When to Stop and Call a Technician
A one-time Ub error is normal and easy to fix. Contact a professional washer and dryer repair service if any of these apply:
- The Ub code appears on every cycle regardless of load size or how you arrange the laundry
- The washer vibrates excessively or "walks" across the floor during every spin, even after leveling
- You hear loud banging, grinding, or scraping sounds from inside the drum during the spin cycle
- The drum feels loose or wobbly when you push on it with the washer off
- The code appears on a recently installed washer and you are unsure whether the shipping bolts were removed
Promix Appliance Repair provides same-day Boston appliance repair for Samsung washers. Call (781) 666-9565 for fast diagnostic service.
How Much Does It Cost to Fix Samsung Washing Machine Error Code Ub?
If You Fix It Yourself
Suspension / Shock Absorber Repair
How to Prevent Samsung Error Code Ub From Coming Back
A few loading habits will keep the Ub code from returning:
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Frequently Asked Questions
Can I keep using my Samsung washer with the Ub error code?
Not until you fix the imbalance. When the Ub code appears, the washer stops the spin cycle to protect itself from vibration damage. The wash and rinse phases may still work, but the clothes will not be spun dry. Redistribute the laundry and restart the cycle to clear the error.
Will resetting my Samsung washer clear the Ub error code?
Unplugging the washer for 60 seconds and plugging it back in will clear the code from the display. However, if the load is still unbalanced when the spin phase starts again, the code will return. A reset alone does not fix the underlying cause. You need to open the door and rearrange the laundry.
How long does it take to fix Samsung error code Ub?
If the cause is an uneven load, the fix takes about 5 minutes: pause the cycle, redistribute the clothes, and restart. If the washer has worn suspension components that need professional replacement, a technician can typically complete the repair in about an hour.
Is Samsung error code Ub covered under warranty?
If the Ub code is caused by a defective suspension rod or shock absorber within the manufacturer's warranty period (typically one year for parts and labor), the repair would be covered. Load-related imbalance errors caused by how the laundry was loaded are not a defect and are not covered under warranty.
Why does my Samsung washer show Ub every time I wash a comforter?
Large, heavy items like comforters absorb a lot of water and become very heavy. When a single heavy item sits on one side of the drum, the weight imbalance triggers the Ub code. Add two or three bath towels to the load to help distribute the weight more evenly around the drum. You can also try the Bedding cycle if your Samsung model has one, as it is designed for bulky items.
What is the difference between Samsung error codes Ub, UE, and dc?
All three codes indicate the same problem: an unbalanced load during the spin cycle. The code that appears depends on your washer's model and display generation. Older Samsung washers often show UE or dc, while newer models display Ub or U6. The troubleshooting steps are identical for all of them.