Washer-dryer combo displays E8 and will not start or stops unexpectedly; may be related to motor speed sensing.

Safety first: Unplug the appliance before accessing the motor or control board.

• Check for overloading: Remove some items and try a smaller load to ensure the motor is not being overloaded.
• Access motor: Remove the rear panel to expose the drive motor. Inspect the wiring harness and connector at the motor, especially the smaller wires leading to the tachometer sensor.
• Inspect for damage: Look for broken wires, loose pins, or signs of overheating at the motor connector.
• Spin test: Rotate the drum by hand and listen for scraping or grinding that could indicate mechanical binding.
• Technical testing: A technician can test the tachometer coil resistance and verify that the control board receives a speed signal when the drum is turned.
• When to replace parts: If wiring is intact but E8 persists, replace the drive motor assembly (with tachometer). If a new motor does not resolve the error, the main control board is likely faulty.