How to Fix / Troubleshooting

Safety first: Unplug the appliance before accessing the motor.

Step-by-step checks:

1. Access motor: Remove the rear panel and locate the drive motor at the bottom of the tub.
2. Inspect tachometer: At the rear of the motor, locate the small tachometer sensor. Check that it is firmly attached and that the wiring connector is secure.
3. Test tach coil: Disconnect the tach wires and measure resistance; typical values are a few hundred ohms. An open circuit indicates a failed tach coil; replace the motor or tach assembly (depending on design).
4. Check rotor magnet: Inspect the rotor magnet ring for cracks or damage. A damaged magnet can cause erratic speed readings.
5. Control board: If motor and tach are good, the motor control section on the PCB may be defective and require replacement.

Washer-dryer shows E18; may stop during spin or show abnormal drum speed behavior

Possible Causes