Samsung Dryer Error Code do — Door Open
What this means
The do error code is a simple notification that the dryer door is open. The dryer will not start a cycle while this code is displayed. If the door is actually closed, the door switch or latch may be malfunctioning.
Alternate codes: dO
Step-by-step fix
3 stepsClose the door firmly
Push the dryer door closed until you hear it click and latch. Press Start to begin the cycle.
Check for obstructions
Make sure no clothing is caught between the door and the dryer frame, preventing it from closing fully.
Even a small piece of fabric can prevent the door from latching.
Inspect the door catch
If the door closes but the error remains, check the door catch for wear or cracks. A worn catch won't trigger the door switch. Replace if necessary.
The door catch is a $5–$10 part and takes minutes to replace.
When to call a professional
If the door hardware is in good condition and the error still displays when the door is closed, the door switch or wiring may need professional diagnosis.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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