Machine stops with E20; may not spin or may have unbalanced load issues.

Safety first: Unplug the appliance before internal inspection.

Step-by-step checks:

• Reload the drum: Open the door and redistribute laundry. Avoid single heavy items (e.g., one bath mat). Add a few smaller items to balance the load and retry spin.
• Check suspension: Remove the top cover and gently push down on the drum. It should move smoothly and return without excessive bouncing. If the drum bounces several times, the dampers may be worn.
• Inspect tachometer: For brushed motors, verify the tachometer coil resistance. For inverter motors, check phase balance as per service data.
• Re-test spin: Run a spin-only program with a balanced load.

When to call a technician: If E20 persists with balanced loads and good suspension, a control board or motor feedback issue may require professional diagnosis.