Samsung WA49B5205AW error Ub
Spinning does not work.
Cause 1 of 3The laundry is not spread evenly. Source: Troubleshooting: Information codes, p. 59
First checkMake sure laundry is spread out evenly.
Causes and checks
The laundry is not spread evenly. Source: Troubleshooting: Information codes, p. 59
- Make sure laundry is spread out evenly.
The washer is not on a flat, stable surface. Source: Troubleshooting: Information codes, p. 59
- Make sure the washing machine is on a flat, stable surface.
Only one item of clothing is being washed. Source: Troubleshooting: Information codes, p. 59
- Redistribute the load. With only one item such as a bathrobe or a pair of jeans, the final spin result might be unsatisfactory and Ub appears.
All 3 causes checked. Contact Samsung Customer Service: 1-800-SAMSUNG (726-7864).
Service
If the checks above do not clear it, contact Samsung Customer Service: 1-800-SAMSUNG (726-7864), samsung.com/us/support/. United States. Source: Troubleshooting: Information codes, p. 60
Other WA49B5205AW codes
- 1C: The water level sensor is not working properly. The washer drains automatically for 3 minutes, and the Power button does not respond during that time.
- 3C: The motor needs checking.
- 4C: Water is not being supplied. The washer drains for 3 minutes while the code shows, and the Power button does not respond during that time.
- 4C2: The cold water supply hose may be on the hot water tap.
- 5C: Water is not draining.
- 9C1: The electronic control needs to be checked (over-voltage error).
- 9C2: Low voltage was detected.
- AC6: The inverter is reporting a communication problem.
- dC: The washer is operating with the door open.
- HC: High temperature heating check.
- LC: The drain hose needs checking. The washer drains for 3 minutes while the code shows, and the Power button does not respond during that time.
- OC: Water overflowed.
- PC: The position of the clutch cannot be detected.
- PC1: The clutch hall signal is incorrect after the clutch position was detected.
- Ur: The washer added a rinse because the tub was unbalanced.
- 8C: The MEMS sensor needs checking.
- dn: A firmware update is in progress through SmartThings.
Sources
- User manual, Washer WA49B5205A*. Samsung Electronics America, Inc. Document DC68-04037Q-05, revision 05, 72 pages, en. downloadcenter.samsung.com (PDF). Listed on the manufacturer's support page. Retrieved 13 November 2026.
Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.