Samsung Washer UB Error Code: What It Means & How to Fix It

Error Code Explained

What Does the Samsung UB Error Code Mean?

Root Causes

Common Causes of the Samsung UB Error Code

• 1
  Unbalanced Load

  A single heavy item or a tightly packed load has settled to one side of the drum. This is the most common cause and is corrected by redistributing the laundry by hand.
• 2
  Oversized Single Item

  Washing one large item (a comforter, sleeping bag, or heavy rug) alone can cause the drum to swing dramatically. Wash large single items with a second item of similar weight to balance the load.
• 3
  Worn Suspension Rods

  Front-load Samsung washers use four suspension rods to dampen drum movement. As the damping pads wear, the drum travels further during spin ramp-up and cannot stabilize, triggering persistent UB.
• 4
  Failed Shock Absorbers (Top-Load)

  Top-load Samsung washers use shock absorbers attached to the outer tub. Worn shocks allow the tub to move excessively during spin, triggering UB.
• 5
  Washer Not Level

  A washer that is not sitting level on all four feet rocks during spin, amplifying any minor load imbalance into a UB condition. Check the leveling feet with a spirit level.
• 6
  Faulty Balance Sensor or Hall Sensor

  Rarely, the electronic sensor that monitors drum rotation speed or position gives false readings that trigger UB even with a correctly balanced load.

Step-by-Step Guide

How to Troubleshoot the UB Error Code

1. 1
   Redistribute the load

   Open the door and physically redistribute the laundry items around the drum. Separate any tangled items. Restart the spin cycle.
2. 2
   Level the washer

   Place a spirit level on top of the machine (front-to-back and side-to-side). Adjust the leveling feet by turning them clockwise to lower or counter-clockwise to raise each corner. Lock the jam nuts after adjustment.
3. 3
   Check the suspension rods

   On front-load models, gently push down on the drum from above (with the door open). It should spring back with firm, even resistance. If the drum thuds or drops loosely, one or more suspension rods have failed.

Professional Service

When to Call a Samsung Technician

FAQ

Frequently Asked Questions — Samsung UB

• Why does my Samsung washer show UB only with certain items?
  Heavy single items — especially comforters, jeans, and towels — are the most frequent triggers because they bundle together during the wash cycle, placing nearly all of the drum weight on one side. Always wash large heavy items with a second similar-weight item, or use the dedicated Bedding cycle.
• How do I know if my Samsung washer suspension rods are worn?
  With the door open, press down on the front of the drum and release quickly. A washer with healthy rods springs back smoothly. If the drum drops and bounces multiple times, or if one corner feels softer than the others, the suspension rods have worn out.
• Does UB cause any damage to a Samsung washer?
  Repeated UB events with severely worn suspension rods allow the drum to strike the cabinet interior. Over time this can damage the outer tub, the door glass, or the door gasket. Replacing worn rods promptly prevents secondary damage.