Samsung Washers2014–present

Error Code FL

Your washer door will not lock to start a cycle.

Moderate

Address soon - your appliance may not work properly

Also displayed as: FL

What This Means

Door lock switch terminal is connected incorrectly; Door lock switch terminal is broken; Intermittent electric wire leakage; Main PCB fault; Drain pump fault; Dry duct fan motor fault

What actually causes this:

The door latch mechanism is not engaging properly, often because something is blocking the door from fully closing.

First Thing to Check

Check that nothing (clothing, detergent buildup) is caught in the door seal preventing the door from closing completely.

Parts Involved

Door Lock SwitchMain PBAWiring Harness

How to Fix

  1. 1

    1. Check and repair the power wire connections and insulation state

  2. 2

    2. Check the door switch — replace if faulty

  3. 3

    3. Check the main PBA door sensing circuit — replace if faulty

  4. 4

    4. Check the door lock switch resistance: pins 3 and 5 must be approximately 949Ω

This Error Applies To

Samsung WF42H5000AW Series Washers (2014) (2014–present)

Service manual exact match: WF42H5000AW/A2

Need more help with your Samsung washers?