Fix the UB Error Code on Your Samsung Front-Load Washer

Quick Answer

UB on a Samsung front-load washer means the drum is unbalanced at spin speed. The machine pauses and attempts a rebalance automatically. If it fails, manually open the door and redistribute items.

UB on a Samsung front-load washer means the drum is unbalanced at spin speed. The machine pauses and attempts a rebalance automatically. If it fails, manually open the door and redistribute items. Persistent UB points to worn shock dampeners, an unlevel machine, or items caught behind the door seal. Unlike the top-load UR code, front-load UB can also be triggered by a garment snagged in the door gasket fold.

SamsungWasherSeverity: low93% DIY Success

Time to Fix

5–60 min

Difficulty

beginner

Parts Cost

$20 – $35

Tools Needed

Bubble level, Adjustable wrench

What Does the UB Code Mean?

UB on front-load models behaves the same as UR on top-load models. The key front-load-specific trigger is clothing or small items that have fallen into the door gasket groove, adding weight to one side of the drum.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Laundry items bunched to one side of the drum40%

Socks or small items trapped in the door gasket fold24%

Worn or collapsed shock dampeners (front-load specific)14%

Overloaded drum preventing free movement of items12%

Machine not sitting level on all four feet10%

Symptoms You May Notice

Machine pauses mid-spin and shows UB
Loud rhythmic thumping during spin
Machine completes cycle at low spin speed instead of high
Drum appears to sway on spin

Can you reset a Samsung washer to clear the UB code?

UB clears automatically when the spin cycle completes successfully. To manually clear, hold Start/Pause for 5 seconds to cancel the cycle, then select Drain + Spin and run it with the redistributed load.

Tools Required for Diagnosis

Bubble levelAdjustable wrenchTorx T20 screwdriver

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

Wait for the automatic rebalance attempt to complete (1-2 minutes)

Wait for the automatic rebalance attempt to complete (1-2 minutes). The machine will add water and slowly rotate the drum.

Open the door and check the rubber door gasket fold along the

Place a bubble level on top of the machine front-to-back and

Reduce load size

Tilt the machine back gently and visually inspect the shock

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name	OEM Number	Estimated Price
Shock Dampener (front-load, sold individually)DC66-00470B · $20–$35	DC66-00470B	$20 – $35

Verify part fitment for your Samsung model

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs

Labor Approach

Our Verdict

REPAIR

Estimated Cost: $28 (Parts) vs $750 (New Machine)

Frequently Asked Questions

Why does my front-load Samsung washer show UB more than my old top-load?

Front-load drums spin at higher RPM (1200-1400 vs 700-800) and are more sensitive to off-center loads. The tolerance for imbalance is tighter, which means UB triggers more easily than UR on top-load models.

Can UB damage the drum bearings over time?

Repeated high-vibration spin attempts do accelerate bearing wear. Samsung's UB protection reduces spin speed to limit vibration, but persistent imbalance over months of use will shorten bearing life.

How do I know if my shock dampeners need replacing?

Lean the machine forward and reach underneath. Compress each dampener by hand. A good dampener provides firm resistance. A worn one compresses easily with no resistance or shows oil staining on the body.

Related Samsung Washer Error Codes

Code: URSamsung Washer UR Error Code: Unbalanced Load (Top Load)Code: UESamsung Washer UE Error Code: Unbalanced Alternate Display

Same Fix Works on These Brands

Samsung shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

Samsung washerSamsung Washer 3C2 Error Code: Motor Stall Samsung washerSamsung Washer 3E Error Code: Motor Fault Samsung washerSamsung Washer 4C Error Code: No Water Supply Samsung washerSamsung Washer 4E Error Code: Water Supply Fault (Top Load)Samsung washerSamsung Washer 5C Error Code: Drain Error (Older Display)Samsung washerSamsung Washer 8C Error Code: Vibration Sensor Fault

Models Known to Experience UB Errors

This repair applies to most Samsung washers with this error code. Common model numbers include:

WF45R6100AW, WF45T6000AW, WF45R6300AW, WF50R8500AV, WF45H5200AW

Last verified for technical accuracy on March 14, 2026