The display of the error code UC on your Samsung washing machine signifies a voltage error. The error may appear at the start, during and at the end of the washing cycles. It may also be denoted by error codes 9C1, 9C2, PF, 3E*, 2E, 9E1, 9E2, UC, 19C1, 19C2 depending on the model. The error code 3E may also signify motor error in some models.
What causes the error?
- Changes in the flow of current caused by a power surge or undersupply
- Power outage
- An error in the central control module
- Damaged power chords
- Faulty sockets
- Connecting the machine to a voltage that is different from the one set by the manufacturer
However, most of the Samsung models released by 2012 are not affected by power surges ranging between 175-270v. This is not, however, the case with the power-sensitive modern models.
Fixing the problem
The error could emanate from a slight power failure in the control module. It is therefore advisable to reset the machine first.
Reset the machine
Switch off the washer and unplug it from the power to de-energize it. Reconnect and restart it after 10 seconds. If the error persists, then it must be another problem.
Use a voltage regulator
If your new Samsung washer displays the error during the first-time usage, there could be an issue with the voltage. You need to align the machine with custom voltage from the country of origin. This is where the voltage regulator comes in. For instance, most electrical appliances from the United States use the energy of 120V. So, you must use a voltage regulator to apply a washing machine from that country. Otherwise, you can easily cause premature motor burnout.
If the above steps don’t help, you need to inspect any damaged chords manually. Additionally, use a multimeter to test the functionality of the power sockets and make any necessary replacements.
Fixing the control module
If the error code persists, then then the problem must be in the control module. Here you can opt for the services of the manufacturer if the washer is still under warranty coverage. Alternatively, you can disassemble the machine and do it yourself if you are a professional. Once you access the control unit, start by inspecting its wire harnessing to replace any damages. If the error does not clear even after ensuring continuity in wire connection, unscrew the control module, and test each of its elements using a multimeter for any defects. Replace the defective elements or the whole control unit if it’s beyond repair.