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FL

Error FL (Code 4) - Door fails to lock

Samsung · Washing Machines

What does FL mean?

The washing machine tried to lock the door three times but was unsuccessful. The cycle cannot start until the door is securely locked.

Common Causes

  • Door not properly closed
  • Faulty door lock mechanism
  • Obstruction preventing the door from closing and locking

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the door is fully closed and latched. Try opening and closing it firmly.

  2. 2

    Check for any laundry or foreign objects caught between the door and the door frame.

  3. 3

    Turn off the washer, wait a minute, and turn it back on to reset the system.

Browse all codes in this manual (95)
Verified technical data. Last updated: April 2026

Related Faults

1Diagnostic Code 1 - Water level does not drop11Error 11 (FAiL) - EEPROM fault, program settings reset1C1C — Water Level sensor is not working properly.
Source: Samsung Washing Machines
Open Manual (Page 24)Search more codes in this manual