Vibration Sensor Error

What it means

This code appears on Samsung front-load and top-load washing machines when the main board does not get a valid signal from the vibration sensor that monitors tub movement; older models show the same fault as 8E. The washer may cancel the spin or stop because it cannot monitor vibration safely. The same code can mean something else on other brands, and its meaning may differ between some Samsung series.

Models covered: Samsung front-load and top-load washing machines; newer models show codes ending in C (e.g. 4C), older ones end in E (e.g. 4E) with the same meaning.

Related codes: UB3CACDC

Symptoms4

• 8C appears when spin starts or after power-on.
• The washer does not spin and clothes come out wet.
• The code may appear after the washer was moved or after heavy shaking.
• Wash and rinse stages run normally in some cases.

Possible causes5

• Vibration sensor connector loosened after moving the washer or heavy shaking.
• Damaged or chafed wire between the sensor and the main board.
• Failed vibration sensor.
• Sensor loose in its mount on the tub.
• Main board fault (less common).

How to diagnose5

1. Unplug the washer for a few minutes, then restart it on a short spin program.
2. Make sure the washer is level and the load is spread evenly, because heavy shaking can come before the code.
3. A technician unplugs the washer before opening it, then checks the vibration sensor connector and mounting.
4. The technician checks the wiring along its length for chafing or breaks and tests the sensor using the manufacturer procedure.
5. If the sensor and wiring are good, the technician checks the main board.

How to fix6

1. Restart the washer after unplugging it, level it and spread the load.
2. Reseat the sensor connector and secure the sensor in its mount.
3. Repair the damaged wire and route it away from moving parts.
4. Replace the vibration sensor if confirmed faulty.
5. Repair or replace the main board if it is confirmed as the cause.
6. Run a full spin and confirm the code does not return.

Repair cost

In Saudi riyals; the highlighted part is the expected range for this fault.

The cost is low when reseating a connector or fixing a wire solves it, moderate for a new sensor, and reaches the high end for a main board.

Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Prices last updated: September 2026

Frequently asked questions