Samsung Washer code **1 Ub** is associated with **unbalanced load / spin error**. The display identifies the system or condition the control detected, but it does not by itself prove which individual part should be replaced. Samsung appliances monitor whether a function reaches an expected state within a certain sequence. When that check fails, the control can store or display a code even though the root cause may sit elsewhere in the same circuit. The recorded display form is **1 Ub**. Search normalization stores it as **1UB** while preserving the characters a homeowner actually sees.
Reviewed by Ethan Mercer · Last reviewed August 17, 2026
Written by
Ethan Mercer Appliance Repair Content SpecialistPublished August 17, 2026Updated August 22, 2026Technically reviewed August 17, 2026
Content status:
Verified
Error code1UB
ApplianceWasher
Quick answer
Unbalanced load / spin error.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so 1UB may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Samsung Washer code **1 Ub** is associated with **unbalanced load / spin error**. The display identifies the system or condition the control detected, but it does not by itself prove which individual part should be replaced. Samsung appliances monitor whether a function reaches an expected state within a certain sequence. When that check fails, the control can store or display a code even though the root cause may sit elsewhere in the same circuit. The recorded display form is **1 Ub**. Search normalization stores it as **1UB** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
On affected Samsung washing machine models, the washer can extend the cycle while trying to redistribute the load.
On affected Samsung washing machine models, high-speed spin may be reduced or canceled.
On affected Samsung washing machine models, laundry can remain wetter than expected after the cycle.
A symptom that fits 1 Ub is that 1 Ub appears during the washer stage associated with unbalanced load / spin error.
One clue that supports the 1 Ub diagnosis is that the cycle can pause, stop, retry, drain, or refuse to advance until the condition is cleared.
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
With 1 Ub recorded, redistribute bulky or uneven items and avoid a single saturated item by itself.
With 1 Ub recorded, confirm the washer is stable and level on a solid floor.
With 1 Ub recorded, make sure the machine can drain fully before judging the spin system.
Before requesting service for 1 Ub, try a small balanced test load rather than repeatedly restarting the same load.
To rule out an accessible cause, record the code and the cycle stage where it appears.
Before requesting service for 1 Ub, check owner-accessible water supply, drain hose/filter, load balance, door, detergent, or power only when relevant.
Important safety warning. Safety takes priority over clearing 1 Ub. Disconnect power and stop use for active leakage near electrical parts, smoke, burning smell, or repeated breaker trips.
Get help
When to request repair service
Once 1 Ub has returned after the safe checks, If imbalance codes occur even with a stable empty/small balanced load, suspension, sensing, drive, or installation issues may need diagnosis. Preserve any accompanying noise, water level, temperature, or operating-stage details for the technician.
Book your repair
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
A single documented power reset can help after an external condition or power event is corrected. If **1 Ub** returns at the same stage, repeated resets only erase useful evidence and do not repair the cause.
Short owner-accessible checks may be reasonable when the appliance is safe. Persistent **1 Ub**, worsening performance, or any electrical/water/heat hazard is a reason to stop use.
Treat **1 Ub** as a starting point, not a replacement instruction. Wiring, feedback signals, operating conditions, and electronic controls can mimic a failed component.
The same-looking code can be reused on another Samsung appliance family or reformatted by region/model year. Match the appliance type and exact model before applying a meaning. This page therefore keeps **Washer 1 Ub** separate from same-looking codes used by other Samsung appliance families.
