Samsung Washers2018–present

Error Code dC

The washer doesn't detect that the lid is properly closed

Moderate

Address soon - your appliance may not work properly

Also displayed as: dC

What This Means

Switch contact error because of deformation of the door hook; Door is pulled open by force; Door is pushed due to pressure difference from internal temperature changes during Boil wash; Door lock switch terminal connected incorrectly; Door lock switch terminal is broken; Main PCB fault

What actually causes this:

The lid wasn't closed all the way, or the door latch is worn out from use

First Thing to Check

Open the lid fully and close it firmly until you hear it click shut

Parts Involved

Door Lock SwitchReed SwitchDoor HookMain PCB

How to Fix

  1. 1

    1. Check the Reed SW resistance between terminals. Checking Part: White-Green wire. Resistance: approx. 0.2 ohms

  2. 2

    2. Check the Motor insulation resistance between terminals. Checking Part: Black-Brown wire. Resistance: 33 ohms to 46 ohms

  3. 3

    3. Check the Lock/Unlock Contact resistance between terminals of the Door Lock/Unlock switch unit

  4. 4

    4. Since 120V power is connected, check if the door switch is defective — close the door if it is opened

  5. 5

    5. Check if the error occurs during the boiling course — as this error occurs because the door is opened due to pressure changes

  6. 6

    6. If the main PCB door detection circuit is defective, replace it

This Error Applies To

Samsung WA50M7450A Series Washers (2018) (2018–present)

Service manual exact match: WA50M7450AP/A4Service manual exact match: WA50M7450AW/A4Service manual exact match: WA48H7400AP/A2

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