Faulty motor in your washing machine.
Samsung uses the 3E error code
to indicate a drive motor tach fault. If that sounds complicated, it's not. If you're handy, you can fix your Samsung front load washing machine error code yourself.
Below is a list of several things you can try before ordering and replacing parts to fix the 3E fault code
How To Fix 3E Samsung Washer Error Code:
1. Unplug The Washing Machine:
Unplug the washer for 2-3 minutes. If the fault is displayed because of an electronic glitch, or communication issue, unplugging the washer for several minutes may possibly reset the electronic panel. Make sure to leave the washer unplugged for at least 2-3 minutes. Leaving unplugged for that long will allow the capacitors located on the printed control board will discharge. letting the capacitors completely discharge is the best way to reset these electronic control boards.
2. Check Wire Connections On Drive Motor:
One fairly common issue that causes the 3E error code is connection problems. Double check the wire harness on the motor. To do so you will need to remove the small back access panel to see the motor and connections. On the back right side you'll see the motor and the motor wie harness. If this was my call I would remove the connection and check the inside of the molex connection. Sometimes the contacts inside the contain burn/melt. If that check good examine the first several inches of the wire as it leaves the molex connector. I've seen the wire break a couple inches away several times. I'm not sure if it's from stress or friction but I've seen it a couple times so double check that.
3. Check Wire Connections On Control Board
The control board could possibly have a faulty wire connections or loose connection. Not very common at least not in my area but it could happen so It's worth mentioning. Double check each connection on the control board. Make sure each connection is tight and the wires are not pinched are burnt anywhere. Again if this was my service call I would remove each wire one at a time and plug back in making sure each wire connection is seated tightly. That just ensures everything is good and sound and one more thing is ruled out.
4. Check Hall Sensor:
The hall sensor on the back of the washer monitors the speed and direction of the tub. The sensor can be out of range or it could also have a faulty wiring connection. I've also seen the wire harness on the motors hall sensor break. I know of other technicians who have seen the same issue. Double check the hall sensor. If you have a multimeter, you could ohm the sensor out. You can ohm the sensor out from the board or directly at the sensor. If you tested the hall sensor from the board, that would rule out a broken wire at the same time. That's usually how I test these hall sensors. You don't have to slide the unit forward and you can test it from the front.
Finally if all the above test good. The motor is going to most likely need to be replaced to fix the fault code. The motor on these units are actually very reliable. Unfortunately a few of them most have made it out of the factory with issues because the 3E error code on Samsung washers is becoming more and more common. I used to see this code very rarely. In the last two months I bet I've seen it 3-4 times. Electronics Appliances Tablets Laptops Phones TVs Samsung US