Samsung Washers2012–present

Error Code LO

The washer lid won't lock

Moderate

Address soon - your appliance may not work properly

Also displayed as: LO

What This Means

Main PCB fault; Door lock mechanism failure

What actually causes this:

The door locking motor or the main control board has failed

First Thing to Check

Unplug the washer for a few minutes, then try again

Parts Involved

Door Lock SwitchMain PBA

How to Fix

  1. 1

    1. In state of Door Lock, check Motor resistance

  2. 2

    2. Check Door Lock And Unlock state

  3. 3

    3. Check Lock/Unlock Contact resistance (Lock White-Red Wire, Unlock White-Blue Wire): approx 0.2Ω

  4. 4

    4. If resistance is satisfied with spec, replace PBA

Parts Commonly Needed for This Error

OEM part numbers confirmed by retailers

This Error Applies To

Samsung WA456DRHDS Series Washers (2012) (2012–present)

Service manual exact match: WA456DRHDSU/AAService manual exact match: WA456DRHDWR/AAService manual exact match: WA422PRHDWR/AAService manual exact match: WA400PJHDWR/AA

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