Samsung Washer 3E Error — Motor Sensor Fix

What Does This Error Mean?

3E on a Samsung washer means the motor hall sensor (tachometer) cannot read motor speed. The wash cycle stops mid-spin. Power off for 10 minutes. If 3E returns, the motor or sensor harness needs replacement — not a DIY repair.

Affected Models

Samsung WF45R6100AW
Samsung WF50R8500AV
Samsung WW90T684DLH
Samsung WF8500NHW
Samsung WW10T684DLH

Common Causes

Failed motor hall sensor (tachometer) on the back of the drum motor
Motor harness connector loose or corroded
Motor itself failing (worn brushes on older models)
Control board fault affecting motor speed feedback (less common)

How to Fix It

Power off at the wall socket for 10 minutes.

A full power-off allows the control board to reset its motor sensor read. Plug back in and try a short rinse cycle — if 3E was a transient sensor glitch, it clears.
Check for unbalanced load.

A severely unbalanced load can cause excessive motor strain that triggers 3E. Open the door, redistribute clothes evenly, and restart. Avoid washing single heavy items (a bath mat, a duvet) alone.
Note when 3E appears in the cycle.

If 3E appears during high-speed spin, the motor is being pushed hardest then. If 3E appears during gentle wash, the sensor is more clearly faulty. This information helps the technician.
Book Samsung service.

3E typically means the motor or its sensor harness needs replacement. The rear panel must be removed and the motor accessed. Cost is typically USD 250–400 fitted depending on whether the sensor only or the full motor needs replacement.

When to Call a Professional

3E typically requires opening the rear panel of the washer to access the motor — not a routine DIY repair. Book Samsung-authorised service for diagnosis.

Frequently Asked Questions

Will my Samsung washer drain if it is showing 3E?

Most Samsung washers will complete the drain step before stopping at 3E, so clothes are usually not soaking when the cycle halts. If clothes are still in dirty water, run a Drain only or Spin only cycle — these may complete even with the sensor fault.

Is Samsung 3E covered under warranty?

Yes — motor faults from manufacturing defects are covered under Samsung's standard warranty (2 years parts and labour in most markets, some markets include a longer warranty on the motor specifically). 3E from heavy overloading is generally not covered.