Samsung Washer ddC — What It Means & How to Fix It
The little AddWash door was opened without pressing Pause first, so the washer stopped to protect itself — close it properly and resume; a recurring ddC means the mini-door latch is faulty.
What this code means
ddC appears only on Samsung models with the AddWash mini-door in the main door. The feature lets you drop in forgotten items mid-cycle, but only after pressing Start/Pause — opening it without pausing breaks the safety interlock and the machine halts with this code.
No AddWash door on your machine means ddC isn't your code — re-check the display. The dC and dE family covers main-door faults, which have their own page.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| AddWash door opened without pressing Pause first | Very common | Yes — close and resume |
| AddWash door not fully clicked shut before the cycle | Common | Yes — firm close |
| Debris or detergent residue in the mini-door latch | Occasional | Yes — clean the latch |
| Failed AddWash latch switch | Less common | No — technician job |
What you can try yourself
- Press the AddWash door firmly shut until it clicks, then press Start/Pause to resume the cycle.
- Going forward: always press Start/Pause and wait for the unlock indicator before opening the mini-door — that's the sequence the interlock expects.
- If the code appears at cycle start, open and re-close the AddWash door with deliberate pressure; a half-latched mini-door is enough to block everything.
- Wipe the small latch and its slot clean — softener residue gums it up just like the main door latch.
- Power-cycle the machine if the code persists with the door visibly shut.
When to call a technician
- ddC shows constantly with the mini-door fully and firmly closed — the latch switch has likely failed.
- The AddWash door no longer clicks or sits flush with the main door.
- The code appears mid-cycle without anyone touching the door, suggesting the switch is dropping out from vibration.
Typical professional repair cost: AddWash latch or switch repair typically runs $100–$200 including labor.
Frequently asked questions
How do I use AddWash without triggering ddC?
Press Start/Pause, wait a moment for the door lock to release (most models show an indicator), open the mini-door, add the item, click it firmly shut, and press Start/Pause again. The pause step is the part everyone skips.
Why won't the AddWash door open at all sometimes?
It stays locked whenever opening would be unsafe — during high-speed spins, when the water level is above the mini-door, or when the water is hot. That's the interlock working, not a fault.
Can the ddC code cause the main door to stay locked?
While the error is active the cycle is suspended, and the main door follows normal lock rules — drained and stopped before it releases. Clear the ddC by closing the mini-door properly and the rest follows.
Related Samsung codes
- Samsung Washer 4C Your Samsung washer isn't getting water — usually a closed tap, kinked fill hose, or clogged inlet screen rather than a broken machine.
- Samsung Washer 5C The washer can't drain — nine times out of ten the culprit is a clogged debris filter or a blocked drain hose, both of which you can clear yourself.
- Samsung Washer UE The load inside the drum is unbalanced, so the washer stopped before spinning at full speed — usually fixed by rearranging the laundry, not by repairs.
- Samsung Washer dC The washer thinks its door is open or not locked — most often a bit of laundry trapped in the door seal or debris in the latch, occasionally a failed door lock.
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