Error Code DC3
The small add-door lock motor is not working correctly
Moderate
Address soon - your appliance may not work properly
Also displayed as: DC3
What This Means
Bending connector on add door lock; Lock module operation fault; Main PBA door detection circuit fault or connector combination issue
What actually causes this:
The lock mechanism on the add-door is worn or has a bent connector
First Thing to Check
Unplug the washer for 60 seconds and try again — if the error persists, call a technician
Parts Involved
How to Fix
- 1
1. Check door lock motor resistance — pins 1-2 should be 46.57 ± 15 Ohm
- 2
2. Check lock stroke — normal detection should show protrusion status
- 3
3. Check resistance values at pins 3-4 and 3-5 — should display normally
- 4
4. Check main PBA door detection circuit and connector combination
- 5
5. Replace or repair if faulty
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
This Error Applies To
Samsung WF45A6400A Series Washers (2024) (2024–present)
Related Error Codes
A button on the control panel is stuck or pressed in
The washer thinks the door is open
The door lock mechanism is not engaging properly
The small add-door on the front of the washer is open
The water heater inside the washer is not working right or the washer is overheating
The washer overheated and shut itself off for safety
The washer is filling with too much water and cannot stop
The washer is not filling with water