When the washing machine malfunctions, it can cancel the program and display a specific alphanumeric code. One of the character combinations that are often found in the Samsung washer is error code UB. This is a sign of imbalance caused by a banal overload or serious damage to sensors and assemblies.
UB error: description
By showing the UB error code, the system not only reports a possible problem. It triggers automatic protection to block the rotation of the uncontrolled reel. If left unchecked, it could run out of control, break something or rip the hoses, and flood. That is why, at the slightest hint of imbalance, the washing machine does not end the cycle but stops working and signals malfunctions using the symbols UB, UE, UR (for new models), and E4 (for old-style equipment).
But sometimes, the UB error occurs for no apparent reason. This may mean that the control module has experienced a one-time failure and needs to be rebooted. Restart the equipment by disconnecting it from the mains for 10-15 minutes. If nothing has changed, proceed to the next steps.
Probable causes
The main problem with imbalance is that various factors influence it. The first and simplest is the transport packaging that holds the tank suspension. But this explanation only applies to new, recently purchased cars. Anything can happen to the old ones. Even an uneven floor will affect their performance, so first check that the equipment is installed correctly.
Uneven loading
If the drum becomes unbalanced during the washing or rinsing phase, turn off the appliance, drain the water and look inside. Typically, the Samsung washer error code UB is called:
- unbalanced load (too few / many things);
- twisting of linen;
- non-observance of the rules of washing (lack of a bag for shoes, improper combination of fabrics).
Correct the problem and restart the loop.
Worn drive belt
This part transmits torque from the electric motor. Over time, it loses its elasticity and stops rotating the drum normally, which causes the error code UB. Unplug the washing machine from the mains, remove the back panel, and cover. Check the condition of the belt. If it’s badly deformed, it’s time to throw it away. The new one will cost more than $ 15.
Problems with bearing and crosspiece
The bearing is located on the supporting part of the drum inside the crosspiece. When they fail, it leads to backlash and vibration. Broken elements must be replaced. The work can be done independently by disconnecting the drum from the motor shaft. But in some models, it is difficult to get to the faulty node without professional help.
Disrupted imbalance compensation system
This includes suspension springs, dampers, and shock absorbers that control the swing. When they break off, weaken or collapse, the oscillations gradually build up until the UB error is displayed on the screen. These parts cannot be restored – they need to be changed. It is advisable to take the equipment in for repair so that the craftsmen at the same time check the integrity of the tank and the support cross.
Defective motor
Old carbon brushes are most often to blame. If they are worn out, the machine cannot cope with spinning, and the motor’s crackling noise is heard. Another characteristic feature is the smell of burning and flying sparks. In this case, you will have to buy and install new brushes. One pair costs from $ 10 to $ 30.
Inoperative tachometer
The UB error code can occur due to the element that controls the speed. In the event of a breakdown, it stops adjusting the rotation speed, leading to imbalance and stopping the washing machine. It also needs to be changed.
Damaged board
If the drum only moves in one direction, a faulty control module is often the cause. Most likely, it is broken or burned out; therefore, it gives incorrect signals and calls Samsung washer error code UB. It can be repaired by restoring damaged chains or by re-soldering some of the elements. But in severe cases, a complete replacement of the microcircuit will be required.